Hi Victorien,
I had the same exact problem, here is how I solved it:
- Uninstall Anaconda
- Start again Anaconda installation and make sure to check option with "Add anaconda to my PATH environment variable". It sets automatically all necessary paths.
- Try to execute it again. In my case it worked
Please note that I'm still experiencing some issues with the new Python step, so I was able to execute only with older CPython step.
If you need more help please contact me.
Stefano Mancino