As say Stephen Butler you need to install django.contrib.sites (it not enable by default) and set
SITE_ID = 1 in your settings. Here is the reference: https://docs.djangoproject.com/en/1.8/ref/contrib/sites/#enabling-the-sites-framework -- "La utopía sirve para caminar" Fernando Birri -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAG%2B5VyOFoMOBQnRXpdmH1W%3D9THLv8KmuqY6xJqZo98h_Y2Se9g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.

