MembershipCreateUserException - The username supplied is invalid

Question

On this line i am getting an exception -

OAuthWebSecurity.CreateOrUpdateAccount(provider, providerUserId, model.UserName);

System.Web.Security

Answer 1

I had the same problem. I solved it by specifying the correct connection string in SimpleMembershipInitializer and UsersContext class. I'm using ASP.NET MVC4