I\'m in the process of creating a new application and started out using EF6-rc1, Microsoft.AspNet.Identity.Core 1.0.0-rc1, Microsoft.AspNet.Identity.EntityFramework 1.0.0-rc
In my case i had a repository class working with authentication, that didn't let me use a "-" inside usernames.. The fix was inside the constructor here:
//-------------------------------------------------------
public AuthRepository()
//-------------------------------------------------------
{
_ctx = new AuthContext();
_userManager = new UserManager(new UserStore(_ctx));
_userManager.UserValidator = new UserValidator(_userManager)
{
AllowOnlyAlphanumericUserNames = false
};
}