python - 「runserver」の実行中にDjango「__init__（）キーワードは文字列でなければなりません」エラー

Question

djangoプロジェクトを開始するためにvirtualenvをセットアップしました。私はすべてをうまくインストールしました。「python manage.py runserver」を発行すると、このエラーが吐き出されます。私はあらゆる種類のdjango runserverエラーを試してみましたが、誰もこれを持っていないようです。誰かがそれについて洞察を持っていますか？

Validating models...

Unhandled exception in thread started by <bound method Command.inner_run of <django.contrib.staticfiles.management.commands.runserver.Command object at 0x1016bb0d0>>
Traceback (most recent call last):
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/core/management/commands/runserver.py", line 92, in inner_run
    self.validate(display_num_errors=True)
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/core/management/base.py", line 280, in validate
    num_errors = get_validation_errors(s, app)
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/core/management/validation.py", line 35, in get_validation_errors
    for (app_name, error) in get_app_errors().items():
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/db/models/loading.py", line 166, in get_app_errors
    self._populate()
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/db/models/loading.py", line 72, in _populate
    self.load_app(app_name, True)
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/db/models/loading.py", line 96, in load_app
    models = import_module('.models', app_name)
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/contrib/auth/models.py", line 21, in <module>
    from django.contrib.contenttypes.models import ContentType
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/contrib/contenttypes/models.py", line 127, in <module>
    class ContentType(models.Model):
  File "/usr/local/bin/django-hari/lib/python2.6/site-packages/Django-1.5.4-py2.6.egg/django/db/models/base.py", line 97, in __new__
    new_class.add_to_class('_meta', Options(meta, **kwargs))
TypeError: Error when calling the metaclass bases
    __init__() keywords must be strings