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

I had this problem after I renamed the parent table of a bunch of my proxy models. I resolved it by:

1. Deleting the migration file that had the name change for the parent table.
2. Using the postgres terminal, I renamed the parent table to its previous name.
3. Ran makemigrations and migrate again