(This is really a question for the chimerax-users mailing list, not the chimera-users one.) If you can wait a week or so, I'll have a ChimeraX .deb package for Ubuntu 16.04 (and another for 18.04). But to answer your question, you do not need a system-wide replacement of Qt5. libQt5core.so.5 is in CHIMERAX/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Core.so.5, where CHIMERAX is where ChimeraX was installed. So add that directory to the LD_LIBRARY_PATH environment variable and rerun ldd on libqxcb.so. And please let me know what you find out so I can make sure the .deb package avoids that problem. Regards, Greg On 06/21/2018 10:34 AM, Petr Leiman wrote:
Dear ChimeraX users and Developers,
ChimeraX v. 0.5 or 0.6 would not start on our stock Ubuntu 16.04 machines. The error message is as follows:
This application failed to start because it could not find or load the Qt platform plugin "xcb" in "".
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.
Reinstalling the application may fix this problem. Fatal Python error: Aborted
Current thread 0x000014f406ce7740 (most recent call first): File "/usr/local/lbbs/chimerax/current/lib/python3.6/site-packages/chimerax/ui/gui.py", line 93 in __init__ File "/usr/local/lbbs/chimerax/current/lib/python3.6/site-packages/ChimeraX_main.py", line 485 in init File "/usr/local/lbbs/chimerax/current/lib/python3.6/site-packages/ChimeraX_main.py", line 788 in <module> File "/usr/local/lbbs/chimerax/current/lib/python3.6/runpy.py", line 85 in _run_code File "/usr/local/lbbs/chimerax/current/lib/python3.6/runpy.py", line 193 in _run_module_as_main Aborted (core dumped)
A few more errors while checking for missing libraries (ldd) of ChimeraX-supplied libqxcb.so, libqxcb-glx-integration.so or libqxcb-egl-integration.so /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5.9' not found /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5' not found /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5: version `Qt_5_PRIVATE_API' not found /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5: version `Qt_5' not found /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
Do I need to do a system-wide replacement of Qt5 for a different flavor (OpenGLES)?
Thanks,
Petr
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