I created an app with Qt designer. When I launching my app It throws this error:
This application failed to start because it could not find or load the Qt platform plugin "xcb"
Reinstalling the application may fix this problem.
Aborted (core dumped)
app = QtWidgets.QApplication(sys.argv)
The problem was in that I installed anaconda with sudo, and with sudo all works fine. I reinstalled anaconda without sudo and now all is ok