Asp.net 要调用此方法，Membership.Provider属性必须是ExtendedMembershipProvider的实例

目前，每当我try 使用ASP内置的默认会员服务注册用户或登录时.Net MVC4在我的主机Provider DiscountASP上我收到了错误

要调用此方法，"Membership.Provider"属性必须是"ExtendedMembershipProvider"的实例.

这不是本地发生的.

这是我的InitializeSimpleMembershipAttribute.cs美元:

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public sealed class InitializeSimpleMembershipAttribute : ActionFilterAttribute
{
    private static SimpleMembershipInitializer _initializer;
    private static object _initializerLock = new object();
    private static bool _isInitialized;

    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        // Ensure ASP.NET Simple Membership is initialized only once per app start
        LazyInitializer.EnsureInitialized(ref _initializer, ref _isInitialized, ref _initializerLock);
    }

    private abstract class SimpleMembershipInitializer
    {
        protected SimpleMembershipInitializer()
        {
            Database.SetInitializer<UsersContext>(null);

            try
            {
                using (var context = new UsersContext())
                {
                    if (!context.Database.Exists())
                    {
                        // Create the SimpleMembership database without Entity Framework migration schema
                        ((IObjectContextAdapter)context).ObjectContext.CreateDatabase();
                    }
                }

                WebSecurity.InitializeDatabaseConnection("DefaultConnection", "UserProfile", "UserId", "UserName", autoCreateTables: true);
            }
            catch (Exception ex)
            {
                throw new InvalidOperationException("The ASP.NET Simple Membership database could not be initialized. For more information, please see http://go.microsoft.com/fwlink/?LinkId=256588", ex);
            }
        }
    }
}

以下是错误的完整屏幕截图:

有没有人知道我如何解决这个问题，或者知道一篇关于这个问题的文章？