[Answer]-South not working with Custom Field

Do you import ApproximateDateField from south.tests.journals.models?

Seems to me like your regular expression is not matching the custom Field’s Class. You need to tell South how to find your custom field, which I’m assuming (I’ve never used django-date-extensions) you import from:

django_date_extensions.fields

With that in mind, you should change this line:

['^south\.tests\.journals\.models\.ApproximateDateField']

to this:

['^django_date_extensions\.fields\.ApproximateDateField']