Django tutorial: `python manage.py startapp polls` fails

Using Django Getting Started
5

@adamchainz @KenWhitesell
Thank you both for your help.
I deactivated my virtualenv and got past this error.
Now, I’m into the actual polls app - and can see both /polls and /admin, but getting a 404 when I try to access http://127.0.0.1:8000 :joy:

Please note: I’m not asking for help on my new issue in this thread. I’ll open a new topic if I can’t figure this one out.

Again, thank you from a Django beginner!