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 faced the same issue and adding app_label attribute in class Meta: solved the error :

class GroupProxy(Group):
    class Meta:
        proxy = True
        app_label = ''
        verbose_name = Group._meta.verbose_name
        verbose_name_plural = Group._meta.verbose_name_plural