QT crash on Ubuntu 22.04

[alanocallaghan]

Running on an Ubuntu 22.04 variant (pop-os), after creating a python virtual environment with:

python -m venv env
. env/bin/activate
pip install PyQt5 numpy opencv-python matplotlib scikit-image
python main.py

I get a failure related to QT plugins:

QObject::moveToThread: Current thread (0x63e2f1589da0) is not the object's thread (0x63e2f2d48660).
Cannot move to target thread (0x63e2f1589da0)

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/alan/Documents/github/imaging/FLUTE/env/lib/python3.10/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, linuxfb, minimal, offscreen, vnc, webgl.

Aborted (core dumped)

I've got various QT5 apt packages installed, couldn't find any obvious answers on StackOverflow.

[iuri-cv]

Hi,

Just wanted to point out I got the same error when running on a Ubuntu 20.04.