python - 'CsrfViewMiddleware' object is not iterable -

i new django, , took on developer on project. have done far clone code git , install dependencies.

immediately after setting project, , running python manager.py runserver , going localhost:8000/admin error stating typeerror @ /admin/login/, 'csrfviewmiddleware' object not iterable:

traceback:

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner 39. response = get_response(request)

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/core/handlers/base.py" in _legacy_get_response 249. response = self._get_response(request)

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response 217. response = self.process_exception_by_middleware(e, request)

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response 215. response = response.render()

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/template/response.py" in render 109. self.content = self.rendered_content

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/template/response.py" in rendered_content 86. content = template.render(context, self._request)

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/template/backends/django.py" in render 66. return self.template.render(context)

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/template/base.py" in render 206. with context.bind_template(self):

file "/usr/lib/python3.5/contextlib.py" in __enter__ 59. return next(self.gen)

file "/home/abhay/code/virtualenvironments/leaguesx/lib/python3.5/site-packages/django/template/context.py" in bind_template 236. updates.update(processor(self.request))

exception type: typeerror @ /admin/login/

exception value: 'csrfviewmiddleware' object not iterable

i post code source code can't figure in source cause of might possibly be.

my settings.py:

import os datetime import datetime django.conf.global_settings import email_use_ssl installed_apps = (     'django.contrib.admin',     'django.contrib.auth',     'django.contrib.contenttypes',     'django.contrib.sessions',     'django.contrib.messages',     'django.contrib.staticfiles',     'rest_framework',     'ourapp',     'social.apps.django_app.default',     'sendgrid',     'corsheaders', )  middleware_classes = (     'django.contrib.sessions.middleware.sessionmiddleware',     'django.middleware.common.commonmiddleware',     'django.middleware.csrf.csrfviewmiddleware',     'django.contrib.auth.middleware.authenticationmiddleware',     'django.contrib.auth.middleware.sessionauthenticationmiddleware',     'django.contrib.messages.middleware.messagemiddleware', #    'django.middleware.clickjacking.xframeoptionsmiddleware',     'ourapp.middleware.authenticationmiddleware.authenticationmiddleware' )  root_urlconf = ''  templates = [     {         'backend': 'django.template.backends.django.djangotemplates',         'dirs': [],         'app_dirs': true,         'options': {             'context_processors': [                 'django.contrib.auth.context_processors.auth',                 'django.template.context_processors.debug',                 'django.template.context_processors.request',                 'django.contrib.auth.context_processors.auth',                 'django.contrib.messages.context_processors.messages',         'django.middleware.csrf.csrfviewmiddleware',         'corsheaders.middleware.corsmiddleware',                 'social.apps.django_app.context_processors.backends',                 'social.apps.django_app.context_processors.login_redirect',             ],         },     }, ] 

(sorry lack of indentation.) ideas on how proceed here appreciated!

try removing 'django.middleware.csrf.csrfviewmiddleware', templates. 'corsheaders.middleware.corsmiddleware', too