Django tutorial: runserver error

Question

I'm following the django tutorial and i immediately ran into a problem on part 1. After running python manage.py runserver i enter the URL into my browser and get an error:

ImproperlyConfigured: Module "django.contrib.auth.middleware" does not define a "SessionAuthenticationMiddleware" attribute/class"

Below i included the error along with the version of python and django i'm running. Any help would be much appreciated

^C172-29-17-104:mysite [redacted]$ python -V
Python 2.7.5

172-29-17-104:mysite [redacted]$ python -c "import django; print(django.get_version())"
1.6.4

172-29-17-104:mysite [redacted]$ python manage.py runserver

Validating models...

0 errors found
October 01, 2014 - 20:12:56
Django version 1.6.4, using settings 'mysite.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py", line 85, in run
    self.result = application(self.environ, self.start_response)
  File "/Library/Python/2.7/site-packages/django/contrib/staticfiles/handlers.py", line 67, in __call__
    return self.application(environ, start_response)
  File "/Library/Python/2.7/site-packages/django/core/handlers/wsgi.py", line 187, in __call__
    self.load_middleware()
  File "/Library/Python/2.7/site-packages/django/core/handlers/base.py", line 47, in load_middleware
    mw_class = import_by_path(middleware_path)
  File "/Library/Python/2.7/site-packages/django/utils/module_loading.py", line 31, in import_by_path
    error_prefix, module_path, class_name))
ImproperlyConfigured: Module "django.contrib.auth.middleware" does not define a "SessionAuthenticationMiddleware" attribute/class
[01/Oct/2014 20:13:44] "GET / HTTP/1.1" 500 59
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py", line 85, in run
    self.result = application(self.environ, self.start_response)
  File "/Library/Python/2.7/site-packages/django/contrib/staticfiles/handlers.py", line 67, in __call__
    return self.application(environ, start_response)
  File "/Library/Python/2.7/site-packages/django/core/handlers/wsgi.py", line 187, in __call__
    self.load_middleware()
  File "/Library/Python/2.7/site-packages/django/core/handlers/base.py", line 47, in load_middleware
    mw_class = import_by_path(middleware_path)
  File "/Library/Python/2.7/site-packages/django/utils/module_loading.py", line 31, in import_by_path
    error_prefix, module_path, class_name))
ImproperlyConfigured: Module "django.contrib.auth.middleware" does not define a "SessionAuthenticationMiddleware" attribute/classpython manage.py runserver

Answer 1

It looks like you are using a version of django prior to version 1.7 (1.6.4 to be specific), and SessionAuthenticationMiddleware was not introduced until django 1.7. Hence the error

Documentation can be found here

On the bottom right, you can choose the version of django. Select the appropriate version, and follow the tutorial specific to the version of django you are using.