i try to migrate from django 1.8 to django 1.9 and i got an error with a test use django message

hi
i try to migrate from django 1.8 to django 1.9 and i got an error with a test use django message
http://sprunge.us/64IqLE
VariableDoesNotExist: Failed lookup for key [messages]
apparently it's a problem with the session (edited)
but i don't see any changes on this part
You already invited:

If you wanna answer this question please Login or Register