This application failed to start because it could not find or load the Qt platform plugin “windows”.

When running the file, prompt:
This Application failed to start because it could not find or load the Qt Platform plugin “Windows”.
Reinstalling the application may fix this problem.


solution:
1. Comment out the code related to matplotlib and find that the above error disappears, indicating that there is a problem with the package matplotlib, re-install
2 in conda environment. This Application failed to start because it could not find or load the Qtplatform Plugin… The version is too low, Upgrade pytorch
enter the anaconda prompt
activate environment conda activate pytorch
to upgrade PIP install --upgrade pytorch torchvision
to wait for installation conda install pytorch torchvision-c pytorch

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