title: Rebuilding old (2010) django project in 2012
body: <p>I am trying to make an old Django project run again. </p>
  
  <p>Update #1: I removed the arguments extra_thumbnails and size so the server is running. But now I don't have proper thumbnails of my pictures...</p>
  
  <pre><code>    image = ImageWithThumbnailsField(
      upload_to='images',
      thumbnail={'size': (120, 120)},
      extra_thumbnails={
          'icon': {'size': (32, 32), 'options': ['crop', 'upscale']},
          'large': {'size': (640, 640)},
      }
  </code></pre>
  
  <p>now looks only:</p>
  
  <pre><code>    image = ImageField(
      upload_to='images')
  </code></pre>
  
  <p>--</p>
  
  <p>After seemingly having solved issues with old sorl.thumbnail versions and deprecated expressions I now get this error when running    </p>
  
  <pre><code>python manage.py runserver
  </code></pre>
  
  <p>I also tried to copy &amp; paste my old files into a new Django project and get the exactly same error. Maybe someone here has a clue where the problem lies?</p>
  
  <pre><code>Unhandled exception in thread started by &lt;bound method Command.inner_run of &lt;django.contrib.staticfiles.management.commands.runserver.Command object at 0x2a80510&gt;&gt;
  Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 88, in inner_run
      self.validate(display_num_errors=True)
    File "/usr/lib/python2.7/dist-packages/django/core/management/base.py", line 249, in validate
      num_errors = get_validation_errors(s, app)
    File "/usr/lib/python2.7/dist-packages/django/core/management/validation.py", line 35, in get_validation_errors
      for (app_name, error) in get_app_errors().items():
    File "/usr/lib/python2.7/dist-packages/django/db/models/loading.py", line 146, in get_app_errors
      self._populate()
    File "/usr/lib/python2.7/dist-packages/django/db/models/loading.py", line 61, in _populate
      self.load_app(app_name, True)
    File "/usr/lib/python2.7/dist-packages/django/db/models/loading.py", line 78, in load_app
      models = import_module('.models', app_name)
    File "/usr/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
      __import__(name)
    File "/home/me/Documents/wdws/wdws/../wdws/cityofwindows/models.py", line 73, in &lt;module&gt;
      class Image(models.Model):
    File "/home/me/Documents/wdws/wdws/../wdws/cityofwindows/models.py", line 83, in Image
      'large': {'size': (640, 640)},
    File "/usr/lib/python2.7/dist-packages/django/db/models/fields/files.py", line 233, in __init__
      super(FileField, self).__init__(verbose_name, name, **kwargs)
  TypeError: __init__() got an unexpected keyword argument 'extra_thumbnails'
  </code></pre>
  
  <p>I need to re-build the project just for visual documentation locally... so also any hints on how to quickly re-run outdated django-projects are very welcome!!</p>
  
  <p>Thanks a lot!</p>
  
  <p>(using Ubuntu 12.04)</p>