How to fix south migration error?

Question

linux

KeyError: "The model 'category' from the app 'types' is not available in this migration."
Nothing worthwhile is googled. The last south, like nothing too terrible.
Falls on the line:

self.gf('django.db.models.fields.related.ForeignKey')(to=orm['types.Category'],
                                                                   null=True, blank=True)),

Where the foreignkey is created on the model itself.

Answer 1

When creating a migration, South does not commit the entire database schema, but only the tables associated with the current application. You may be trying to manually add a ForeignKey to a model that this migration does not know about.
Look towards the --freeze option for schemamigration