mlagents-learn not recognized as a command when project is on a different drive

Unity Engine
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1

Hello everyone,

I’m running into an issue with the mlagents-learn command not being recognized when my unity project is on my D: drive. I don’t have this issue when I run the command if the unity project is on my C: (main) drive.

In both instances, I use CMD to run:

  1. cd ‘project directory’
  2. venv\Scripts\activate
  3. mlagents-learn

I’m not entirely sure what’s causing this, any ideas?

2

hi Jan - i’m not a Windows expert, but I don’t believe you can use virtual environments on different disks or networks drives on Windows. You might need to install Python on the D:\ resolve this.

3

Hello Jeffrey, thanks for the reply.
While the python installer gave an error because it was already installed on my system, your anser inspired me to try the following:

I added my python install directory to the system environment variables as explained here:

In case others run into this problem:
The default directory for Python 3.7, which you should add to the system environment variables is this: C:\Users\Username\AppData\Local\Programs\Python\Python37.

You can consider this question solved, thanks!

4

awesome!