Could not find the Qt platform plugin "xcb" in ""

[logon84]

I am getting this error trying to open the latest linux version:

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. Reinstalling the application may fix this problem.

I didn't face this problem with 5.0, until it broke due to the changes in usdb site of course. Some clues?

[bohning]

According to this thread, you could try

• running it with QT_DEBUG_PLUGINS=1 set
• sudo apt-get install libxcb-xinerama0 and see if that yields something useful / works.

[logon84]

According to this thread, you could try

* running it with QT_DEBUG_PLUGINS=1 set

* sudo apt-get install libxcb-xinerama0
  and see if that yields something useful / works.

Nothing new in the output after setting QT_DEBUG_PLUGINS=1 or installing libxcb-xinerama0 (it was already installed). I am using Linux Mint 21.3 in case someone experiences also the same.

[logon84]

If I create the directory "platforms" next to the USDB syncer executable and copy the file /lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb inside, I get the output:

qt.core.plugin.factoryloader:` checking directory path "/home/logon/.ultrastardx/songs/platforms" ...
qt.core.plugin.factoryloader:` looking at "/home/logon/.ultrastardx/songs/platforms/libqxcb.so"
qt.core.plugin.loader:` Found metadata in lib /home/logon/.ultrastardx/songs/platforms/libqxcb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "xcb"
        ]
    },
    "archlevel": 0,
    "className": "QXcbIntegrationPlugin",
    "debug": false,
    "version": 331520
}

qt.core.plugin.loader: In /home/logon/.ultrastardx/songs/platforms/libqxcb.so:
  Plugin uses incompatible Qt library (5.15.0) [release]
qt.core.plugin.factoryloader: "The plugin '/home/logon/.ultrastardx/songs/platforms/libqxcb.so' uses incompatible Qt library. (5.15.0) [release]" 
         not a plugin
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. Reinstalling the application may fix this problem.

[bohning]

It uses Qt 6.6 (PySide6) if that is of any help.

[RumovZ]

It seems to be an issue with PyInstaller. I've fixed this in 5b4b43f by pinning an older version. There should be a new release soon.