InvalidBasesError: Cannot resolve bases for []

Question

When I run tests I get this error during database initialization:

django.db.migrations.state.InvalidBasesError: Cannot resolve bases for [

        

Answer 1

If this occurs to you in an app that already has a migrations folder (and a init.py file in it), delete all other files, and run makemigrations and migrate again.

P.S.: You may need to reconfigure your models.py or some tables in your database manually.