asp.net – 在将MVC和路由添加到WebForms项目后,IIS中的默认文档(default.aspx)无法正常工作

public static void RegisterRoutes(RouteCollection routes)
    {
        // *** This Line ***
        routes.IgnoreRoute("");                                     // required for the default document in IIS to work
        // *****************
        routes.IgnoreRoute("{resourcE}.axd/{*pathInfo}");
        routes.IgnoreRoute("{resourcE}.aspx/{*pathInfo}");

        routes.MapRoute(
            "Default",// Route name
            "{Controller}/{action}/{iD}",// URL with parameters
            new { controller = "Home",action = "Index",id = "" }  // Parameter defaults
        );
    }

    protected void Application_Start(Object sender,EventArgs E)
    {
        RegisterRoutes(RouteTable.Routes);
    }