Lerning django 2.1, having problems with tutorial

[Larz60+]

Have to tried restarting the server?
According to the rules:

Automatic reloading of runserver

The development server automatically reloads Python code for each request as needed. You don’t need to restart the server for code changes to take effect. However, some actions like adding files don’t trigger a restart, so you’ll have to restart the server in these cases.

This is why I ask.

Also try (for python 3) from command line:

sudo apt install python3-migrate

**Note** I had to run twice to get all updates.