text/microsoft-resx 2.0 System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 AddEntityFrameworkStores can only be called with a role that derives from IdentityRole<TKey, TUserRole, TRoleClaim>. error when the role does not derive from IdentityRole AddEntityFrameworkStores can only be called with a user that derives from IdentityUser<TKey, TUserClaim, TUserRole, TUserLogin, TUserToken>. error when the user does not derive from IdentityUser Role {0} does not exist. error when a role does not exist Value cannot be null or empty. error when something cannot be null or empty