Django implemented built-in migrations with the release of 1.7, and South became obsolete. You will need to create standard migrations for the application to be compatible with Django 1.7+. The Django docs explain this with detail.
https://docs.djangoproject.com/en/1.8/topics/migrations/#upgrading-from-south -- You received this message because you are subscribed to the Google Groups "Mezzanine Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to mezzanine-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.