*Looks like you changed the name of the thread, and my reply went elsewhere. Here it is again:*
Well, the error message says you should check the SECRET_KEY setting. Have you done that? Most likely it was removed from your settings module when you upgraded to Mezzanine 4. I recommend you put it in local_settings.py to avoid having it under version control. Other than that, there's a know issue relating field injection of non-Django fields and Django 1.9: https://github.com/stephenmcd/mezzanine/issues/1513 -- You received this message because you are subscribed to the Google Groups "Mezzanine Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to mezzanine-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
