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<p>(This is really a question for the chimerax-users mailing list,
not the chimera-users one.)</p>
<p>If you can wait a week or so, I'll have a ChimeraX .deb package
for Ubuntu 16.04 (and another for 18.04).</p>
<p>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. <br>
</p>
<p> Regards,</p>
<p> Greg<br>
</p>
<div class="moz-cite-prefix">On 06/21/2018 10:34 AM, Petr Leiman
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFpQgSdSgSjyAWU5gQLX-c2qvCAVVTxTFq=Yt3WAAo=dB2kx7g@mail.gmail.com">
<div dir="ltr">Dear ChimeraX users and Developers,
<div><br>
</div>
<div>ChimeraX v. 0.5 or 0.6 would not start on our stock Ubuntu
16.04 machines. The error message is as follows:</div>
<div><br>
</div>
<div>
<div>This application failed to start because it could not
find or load the Qt platform plugin "xcb"</div>
<div>in "".</div>
<div><br>
</div>
<div>Available platform plugins are: eglfs, linuxfb, minimal,
minimalegl, offscreen, vnc, xcb.</div>
<div><br>
</div>
<div>Reinstalling the application may fix this problem.</div>
<div>Fatal Python error: Aborted</div>
<div><br>
</div>
<div>Current thread 0x000014f406ce7740 (most recent call
first):</div>
<div> File
"/usr/local/lbbs/chimerax/current/lib/python3.6/site-packages/chimerax/ui/gui.py",
line 93 in __init__</div>
<div> File
"/usr/local/lbbs/chimerax/current/lib/python3.6/site-packages/ChimeraX_main.py",
line 485 in init</div>
<div> File
"/usr/local/lbbs/chimerax/current/lib/python3.6/site-packages/ChimeraX_main.py",
line 788 in <module></div>
<div> File
"/usr/local/lbbs/chimerax/current/lib/python3.6/runpy.py",
line 85 in _run_code</div>
<div> File
"/usr/local/lbbs/chimerax/current/lib/python3.6/runpy.py",
line 193 in _run_module_as_main</div>
<div>Aborted (core dumped)</div>
</div>
<div><br>
</div>
<div>A few more errors while checking for missing libraries
(ldd) of ChimeraX-supplied libqxcb.so,
libqxcb-glx-integration.so or libqxcb-egl-integration.so</div>
<div>/usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5.9'
not found<br>
</div>
<div>/usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5'
not found<br>
</div>
<div>/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5: version
`Qt_5_PRIVATE_API' not found<br>
</div>
<div>/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5: version `Qt_5'
not found<br>
</div>
<div>/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5<br>
</div>
<div><br>
</div>
<div>Do I need to do a system-wide replacement of Qt5 for a
different flavor (OpenGLES)?</div>
<div><br>
</div>
<div>Thanks,</div>
<div><br>
</div>
<div>Petr</div>
</div>
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<pre wrap="">_______________________________________________
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</pre>
</blockquote>
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