I am seeing the same issue as this question, but the scenario presented there doesnt seem to apply so I think I have a different issue. In fact, I\'m seeing several question
I was having this same problem, and I recall having a similar problem working with SimpleMembership in MVC4.
I’m doing database first development, so I have an EDMX file. Turns out, ASP.NET Identity does not like the connection string that is created when you generate your .edmx model file. If you are using a. EDM connection string in :base(“EDMConnString”) you will most likely have this problem.
I fixed this by creating a standard connection string that pointed to the database where the ASP.NET Identity tables are (in my case the same database), used that connection string in :base, and it worked.
Something like this