Could not find or load the Qt platform plugin "xcb"

[RafaelLinux]

 ./DownZemAll_v2.5.8_x86_64_no_launcher.AppImage 
This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

I verified xcb is installed. What more to check?

Operating System: openSUSE Tumbleweed 20220719 KDE Plasma Version: 5.25.3 KDE Frameworks Version: 5.96.0 Qt Version: 5.15.5 Kernel Version: 5.18.11-1-default (64-bit) Graphics Platform: X11 Processors: 4 × Intel® Core™ i5-6600K CPU @ 3.50GHz Memory: 31.3 GiB of RAM Graphics Processor: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2

[setvisible]

Hi,

After some researches and tests with Ubuntu 22.04, it appeared that some libraries where missing. Indeed typing the following command helps to find the missing libs:

ldd ./DownZemAll ldd ./libQt6Core.so ldd ./libQt6Gui.so ldd ./libQt6OpenGL ...and so on

Thus, these libraries have been added in version 3.0.1 released today.

From there, the xcb issue still appears, but it's more a config issue. I typed the next command to ensure XCB (instead of Wayland) is used, then set the LD_LIBRARY_PATH and executed the application more or less correctly:

export QT_QPA_PLATFORM=xcb export LD_LIBRARY_PATH= '/path/to/DownZemAll' ./DownZemAll

It was a kind of library linking issue.

It would be nice if an expert of Linux could help to fix it definitively... Currently I just changed the command in the shortcut DownZemAll.desktop; There's certainly a more elegant way to solve it :)

So I'll keep this ticket opened and will close the others.

Cheers,

[RafaelLinux]

Latest AppImage version works without any issues. Theme, however, doesn't match global Plasma one (I'm using dark theme).

[eadmaster]

still not working even with these commands:

export QT_QPA_PLATFORM=xcb export LD_LIBRARY_PATH= '/path/to/DownZemAll' ./DownZemAll

Fatal: Cannot mix incompatible Qt library (6.2.4) with this library (6.3.1) Aborted (core dumped)

Plus, the Appimage for the latest 3.x release is missing.

[RafaelLinux]

As far as I know, no "Appimage" versions are being released (except for some "non-launcher" versions). I would like a much better AppImage version than the compressed and installable version, but I understand that this involves difficulties and requires more time.

At the moment, I don't use JDownloader since I found DZA, cause is much faster loading and respects my HiDPI screen size without needing to configure nothing.

[eadmaster]

EDIT: nevermind, fixed now