title: South migration error: NoMigrations exception for django.contrib.auth
body: <p>I have been using South on my project for a while, but I recently did a huge amount of development and changed development machine and I think something messed up in the process. The project works fine, but I can't apply migrations. Whenever I try to apply a migration I get the following traceback:</p>
  
  <pre><code>danpalmer:pest Dan$ python manage.py migrate frontend
  Traceback (most recent call last):
    File "manage.py", line 11, in &lt;module&gt;
      execute_manager(settings)
    File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 362, in execute_manager
      utility.execute()
    File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 303, in execute
      self.fetch_command(subcommand).run_from_argv(self.argv)
    File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 195, in run_from_argv
      self.execute(*args, **options.__dict__)
    File "/Library/Python/2.6/site-packages/django/core/management/base.py", line 222, in execute
      output = self.handle(*args, **options)
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/management/commands/migrate.py", line 102, in handle
      delete_ghosts = delete_ghosts,
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/__init__.py", line 182, in migrate_app
      applied = check_migration_histories(applied, delete_ghosts)
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/__init__.py", line 85, in check_migration_histories
      m = h.get_migration()
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/models.py", line 34, in get_migration
      return self.get_migrations().migration(self.migration)
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/models.py", line 31, in get_migrations
      return Migrations(self.app_name)
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 60, in __call__
      self.instances[app_label] = super(MigrationsMetaclass, self).__call__(app_label_to_app_module(app_label), **kwds)
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 88, in __init__
      self.set_application(application, force_creation, verbose_creation)
    File "/Library/Python/2.6/site-packages/South-0.7-py2.6.egg/south/migration/base.py", line 159, in set_application
      raise exceptions.NoMigrations(application)
  south.exceptions.NoMigrations: Application '&lt;module 'django.contrib.auth' from '/Library/Python/2.6/site-packages/django/contrib/auth/__init__.pyc'&gt;' has no migrations.
  </code></pre>
  
  <p>I am not that experienced with South and I haven't met this error before. The only helpful mention I can find online about this error is for pre-0.7 I think and I am on South 0.7. I ran 'easy_install -U South' just to make sure.</p>