Can not load the Qt platform plugin xcb

[crys313]

qt.qpa.xcb: could not connect to display 
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/notebooks/miniconda3/envs/openseeface/lib/python3.9/site-packages/cv2/qt/plugins" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: xcb.

hi, anyone know how to fix this error? thanks!

[emilianavt]

It's not an OpenSeeFace specific issue, but looks like a problem with your OpenCV installation. It tries to use the Qt library to open a window, but it cannot find the necessary library.