Traceback (most recent call last):    File "C:\Python26\lib\site-packages\django\core\servers\basehttp.py", line 277, in run     self.result = application(self.environ, self.start_response)    File "C:\Python26\lib\site-packages\django\core\servers\basehttp.py", line 634, in __call__     return self.application(environ, start_response)    File "C:\Python26\lib\site-packages\django\core\handlers\wsgi.py", line 239, in __call__     response = self.get_response(request)    File "C:\Python26\lib\site-packages\django\core\handlers\base.py", line 67, in get_response     response = middleware_method(request)    File "C:\Python26\lib\site-packages\django\middleware\common.py", line 57, in process_request     urlresolvers.resolve(request.path_info)    File "C:\Python26\lib\site-packages\django\core\urlresolvers.py", line 244, in resolve     return get_resolver(urlconf).resolve(path)    File "C:\Python26\lib\site-packages\django\core\urlresolvers.py", line 180, in resolve     sub_match = pattern.resolve(new_path)    File "C:\Python26\lib\site-packages\django\core\urlresolvers.py", line 178, in resolve     for pattern in self.urlconf_module.urlpatterns:    File "C:\Python26\lib\site-packages\django\core\urlresolvers.py", line 197, in _get_urlconf_module     self._urlconf_module = __import__(self.urlconf_name, {}, {}, [''])    File "C:\Python26\lib\site-packages\django\contrib\admindocs\urls.py", line 6, in <module>     views.doc_index,  AttributeError: 'module' object has no attribute 'doc_index'   ***************************************************************************  Ativei a url " (r'^admin/doc', include('django.contrib.admindocs.urls')), "  Add o 'django.contrib.admin', no INSTALLED_APPS, e esse erro continua ocorrendo...   Se alguém souber o motivo e puder me ajudar. Muito obrigado. Abraço