[PyMOL] unable to load the Qt platform plugin "xcb"

[Mohammad T M. J. <maz...@gm...>]

Hello,

I am trying to run pymol on my linux computer (Ubuntu 17.10).

I downloaded PyMOL-2.1.1_0-Linux-x86_64.tar.bz2

then unpacked with

tar -jxf PyMOL-2.1.1_0-Linux-x86_64.tar.bz2

When I try to execute pymol from the pymol folder, I get the following
message.

This application failed to start because it could not find or load the Qt
platform plugin "xcb"
in "".
Available platform plugins are: eglfs, minimal, minimalegl, offscreen, xcb.
Reinstalling the application may fix this problem.
Abort (core dumped)

I have libqxcb,

locate libqxcb
/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
/usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-egl-integration.so
/usr/lib/x86_64-linux-gnu/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so


Any idea how to solve this issue?

Thanks.
M.