Pyqt5 & Pyside2 / Could Not Load The Qt Platform Plugin "windows" In "" Even Though It Was Found

Development environment 1. Windows 10 / Python 3.6.8 / Pyinstaller 3.4 / PyQt5 5.10 2. Windows 10 / Python 3.6.8 / Pyinstaller 3.4 / PySide2 5.11.0 3. Windows 10 / Python 3.6.8

Solution 1:

With Anaconda:

conda install -c conda-forge pyside2 

But is an older version. (v5.6) With the older version, I did not encounter any problems so far. I have the same problem with the new version but I need it because the older does not have support for QtCharts