[chimerax-users] Chimerax 1.2.5 Ubuntu 16.04 failed to start

[Greg Couch]

Thank you for reporting this.  There is a missing dependency on the 
libxcb-xinerama0 package.  Please install it with:

     sudo apt install libxcb-xinerama0

and then try ChimeraX 1.2.5 again.  This bug is also present in the 
current Ubuntu 18.04 and 20.04 downloads.  It will be fixed within 24 hours.

     -- Greg

On 6/13/2021 7:31 AM, Zhou, Bing-Rui (NIH/NCI) [E] via ChimeraX-users wrote:
>
> Hello ChimeraX developer,
>
> I am trying to update ChimeraX from v1.1 to v1.2.5 on a Ubuntu 16.04 
> Linux machine, but Chimerax v1.2.5 failed to start with the following 
> error message:
>
> /> //sudo apt-get install ~/Downloads/ucsf-chimerax_1.2.5_amd64.deb/
>
> />chimerax/
>
> /qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even 
> though it was found./
>
> /This application failed to start because no Qt platform plugin could 
> be initialized. Reinstalling the application may fix this problem./
>
> //
>
> /Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, 
> offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, 
> wayland-xcomposite-glx, xcb./
>
> //
>
> /Fatal Python error: Aborted/
>
> //
>
> /Current thread 0x00007f5866636700 (most recent call first):/
>
> /  File 
> "/usr/lib/ucsf-chimerax/lib/python3.8/site-packages/chimerax/ui/gui.py", 
> line 157 in __init__/
>
> /  File 
> "/usr/lib/ucsf-chimerax/lib/python3.8/site-packages/ChimeraX_main.py", 
> line 577 in init/
>
> /  File 
> "/usr/lib/ucsf-chimerax/lib/python3.8/site-packages/ChimeraX_main.py", 
> line 1015 in <module>/
>
> /  File "/usr/lib/ucsf-chimerax/lib/python3.8/runpy.py", line 87 in 
> _run_code/
>
> /  File "/usr/lib/ucsf-chimerax/lib/python3.8/runpy.py", line 194 in 
> _run_module_as_main/
>
> /Aborted (core dumped)/
>
> I could downgrade to ChimeraX v1.1 and it works fine, just wondering 
> what has changed in v1.2.5 and if there is a fix for this issue.
>
> Thanks,
>
> Bing-Rui
>
>
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