auto-py-to-exe "'extra' does not exist in evaluation environment."

Question

I'm trying to learn how to convert my Python projects into .exe's so they can be distributed to my coworkers without them needing to install and manage a Python environment. The problem is that every time I try I get the error File "C:\Users\Daniel\AppData\Local\Programs\Python\Python39\lib\site-packages\packaging\markers.py", line 215, in _get_env raise UndefinedEnvironmentName( packaging.markers.UndefinedEnvironmentName: 'extra' does not exist in evaluation environment. I've checked the FAQs, I've tried using auto-py-to-exe installed from a pip environment and from a conda environnment, and I've double checked that all dependencies are installed in the virtual environment, what should my next steps in troubleshooting be?

Answer 1

Try installing a newer version of the packaging module.

pip install --upgrade packaging

Or:

python -m pip install --upgrade packaging