title: Cannot run Django development server (UnicodeDecodeError)
body: <p>When I am trying to run django development server (using command line or pycharm Run feature) I get following error traceback:</p>
  
  <pre><code>Performing system checks...
  
  System check identified no issues (0 silenced).
  Unhandled exception in thread started by &lt;function wrapper at 0x037EF170&gt;
  Traceback (most recent call last):
    File "C:\Python27\lib\site-packages\django\utils\autoreload.py", line 222, in wrapper
      fn(*args, **kwargs)
    File "C:\Python27\lib\site-packages\django\core\management\commands\runserver.py", line 107, in inner_run
      self.check_migrations()
    File "C:\Python27\lib\site-packages\django\core\management\commands\runserver.py", line 159, in check_migrations
      executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
    File "C:\Python27\lib\site-packages\django\db\migrations\executor.py", line 17, in __init__
      self.loader = MigrationLoader(self.connection)
    File "C:\Python27\lib\site-packages\django\db\migrations\loader.py", line 48, in __init__
      self.build_graph()
    File "C:\Python27\lib\site-packages\django\db\migrations\loader.py", line 173, in build_graph
      self.load_disk()
    File "C:\Python27\lib\site-packages\django\db\migrations\loader.py", line 95, in load_disk
      if name.endswith(".py"):
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xb9 in position 27: ordinal not in range(128)
  </code></pre>
  
  <p>How can I fix that?</p>
  
  <p>Edit:
  I've checked how it works when I delete all migrations and re-create them. When I do so, server is starting without any issue. HOWEVER, when I've switched to another machine and tried to start server (I am syncing files via dropbox) error message appears again.</p>