could not load the Qt platformm plugin "xcb＂ in ＂"

This error message usually appears when there is an issue with the installation of the Qt platform plugin on your system.

One possible solution is to check if the required dependencies are installed. You can try installing the XCB plugin using the following command:

sudo apt-get install libxcb-xinerama0

If this does not solve the issue, you can try setting the environment variable `QT_DEBUG_PLUGINS` to `1` and run your application again. This will provide more information about the plugin loading process and may help identify the root cause of the issue.

export QT_DEBUG_PLUGINS=1

If you still can't solve the problem, please provide more information about your system and the context in which this error occurred so that I can assist you better.