Qt platform plugin not found

[3rdcycle]

Hi

I'm installing geopsy 3.4.2 on our local mini-cluster using Easybuild, i.e. from sources. The installation works fine but when I try to start geopsy I get an error message.

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qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in ""
This application failed to start because no Qt platform plugin could be initialized.

With

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QT_DEBUG_PLUGINS=1 geopsy

I can see that it only seems to be looking for libqxcb.so in <geopsy_install_path>/bin/platforms, which doesn't exist.

One way to get it to work is by setting

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QT_QPA_PLATFORM_PLUGIN_PATH=$EBROOTQT5/plugins/platforms

i.e. pointing it to my Qt installation's plugin/platforms directory. Setting this system wide seems not ideal though, since it might interfere with other software.

How does geopsy normally find the platform plugins?

[admin]

Hi,

Platform plugins are managed by Qt libraries. geopsy relies on a working Qt set without interfering at this "low" level.

If the final Qt path is not the configured install path, this kind of error may occur.
Is it possible to add the specific environment settings in user profiles rather than system wide?
This is the kind of issue I played with for MacOS but never under Linux, so my experience is rather limited.

Marc

[3rdcycle]

Hi Marc

Thanks for your quick response. It turned out to be an issue with the environment (specifically LD_LIBRARY_PATH that was changed by another module. This messed up the Qt installation as you suggested. As always, after days of searching I find this out just hours after posting to the forum

Thanks anyway. Issue resolved.