Ich arbeite an einem Django-Projekt und habe diese Fehlermeldung erhalten.

Stack-Trace

File "/usr/local/lib/python2.7/dist-packages/Django-1.4.3-py2.7.egg/django/core/handlers/wsgi.py", line 180, in _get_post
    self._load_post_and_files()

File "/usr/local/lib/python2.7/dist-packages/Django-1.4.3-py2.7.egg/django/http/__init__.py", line 379, in _load_post_and_files
    self._post, self._files = QueryDict(self.body, encoding=self._encoding), MultiValueDict()

File "/usr/local/lib/python2.7/dist-packages/Django-1.4.3-py2.7.egg/django/http/__init__.py", line 335, in body
    self._body = self.read()

File "/usr/local/lib/python2.7/dist-packages/Django-1.4.3-py2.7.egg/django/http/__init__.py", line 391, in read
    return self._stream.read(*args, **kwargs)

File "/usr/local/lib/python2.7/dist-packages/Django-1.4.3-py2.7.egg/django/core/handlers/wsgi.py", line 98, in read
    result = self.buffer + self._read_limited()

File "/usr/local/lib/python2.7/dist-packages/Django-1.4.3-py2.7.egg/django/core/handlers/wsgi.py", line 92, in _read_limited
    result = self.stream.read(size)

UnreadablePostError: request data read error

Warum tritt dieser Fehler auf?
Wie löst man?