Ubuntu pyinstaller Error when packaging the executable: … qt.qpa.plugin: Could not find the Qt platform plugin “xcb” in “…
Solution to the problem

Problem
Ubuntu pyinstaller reports an error when packaging the executable: .QFactoryLoader::QFactoryLoader() checking directory path “/home/dyj/CarUI/dist/carmain/platforms” … 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.
Solution
Add the following code to your own main program code.

import os
import PySide2
dirname = os.path.dirname(PySide2.__file__)
plugin_path = os.path.join(dirname, 'plugins', 'platforms')
os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = plugin_path