Troubleshooting

Error related to llvmlite.dll

In Windows, it is possible that some examples crash with the error message:

OSError: Could not load shared object file: llvmlite.dll

If this problem is encountered, some possible solutions are given on this Numba issue on GitHub. An easy fix is to uninstall the packages llvmlite and numba, and reinstall them using the numba channel. Within the qtcad virtual environment, this can be done with:

conda uninstall llvmlite numba
conda install -c numba llvmlite
conda install -c numba numba

Matplotlib figure automatically closing immediately after being produced

In Windows, for some users, plots produced with Matplotlib will automatically close immediately after being produced when displayed after PyVista plots. This is a known issue that has been reported to PyVista developers (see this PyVista issue on GitHub). Until this issue is resolved, a work-around is to always display plots using Matplotlib first, and then display 3D plots with PyVista.