title: South + Django 1.4 Database error
body: <p>I have just installed my Django project on a new system, and installed Django 1.4. However when I try to run <code>manage.py runserver</code> or <code>manage.py syncdb</code> I get this error from South:</p>
  
  <pre><code>Validating models...
  
  Unhandled exception in thread started by &lt;bound method Command.inner_run of &lt;django.contrib.staticfiles.management.commands.runserver.Command object at 0x1a67810&gt;&gt;
  Traceback (most recent call last):
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 91, in inner_run
      self.validate(display_num_errors=True)
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/django/core/management/base.py", line 266, in validate
      num_errors = get_validation_errors(s, app)
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/django/core/management/validation.py", line 30, in get_validation_errors
      for (app_name, error) in get_app_errors().items():
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/django/db/models/loading.py", line 158, in get_app_errors
      self._populate()
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/django/db/models/loading.py", line 64, in _populate
      self.load_app(app_name, True)
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/django/db/models/loading.py", line 88, in load_app
      models = import_module('.models', app_name)
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
      __import__(name)
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/south/models.py", line 2, in &lt;module&gt;
      from south.db import DEFAULT_DB_ALIAS
    File "/home/saul/.virtualenvs/canada/lib/python2.7/site-packages/south/db/__init__.py", line 78, in &lt;module&gt;
      db = dbs[DEFAULT_DB_ALIAS]
  KeyError: 'default'
  </code></pre>
  
  <p>I am using SQlite currently.  I think it might be because of this <a href="https://docs.djangoproject.com/en/dev/releases/1.4/#database-connection-s-thread-locality" rel="noreferrer">change</a> with Django 1.4, however other users don't seem to having my problem. All my packages are up to date.</p>