title: django-celery: No result backend configured
body: <p>I am trying to use django-celery in my project</p>
  
  <p>In settings.py I have</p>
  
  <pre><code>CELERY_RESULT_BACKEND = "amqp"
  </code></pre>
  
  <p>The server started fine with</p>
  
  <pre><code>python manage.py celeryd --setting=settings
  </code></pre>
  
  <p>But if I want to access a result from a delayed task, I get the following error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "C:\Python27\lib\site-packages\celery\result.py", line 108, in ready
      return self.status in self.backend.READY_STATES
    File "C:\Python27\lib\site-packages\celery\result.py", line 196, in status
      return self.state
    File "C:\Python27\lib\site-packages\celery\result.py", line 191, in state
      return self.backend.get_status(self.task_id)
    File "C:\Python27\lib\site-packages\celery\backends\base.py", line 404, in _is
  _disabled
      raise NotImplementedError("No result backend configured.  "
  NotImplementedError: No result backend configured.  Please see the documentation
   for more information.
  </code></pre>
  
  <p>It is very strange because when I just run celeryd (with the same celery settings), it works just fine. Has anyone encountered this problem before?</p>
  
  <p>Thanks in advance!</p>