MVC3默认路由不再有效

Question

我在global.asax

中有以下路由规则

public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

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

        }

我不知道发生了什么，但现在默认的网址引发了以下错误：

The view at '~/index.cshtml' must derive from WebViewPage, or WebViewPage<TModel>.

[InvalidOperationException: The view at '~/index.cshtml' must derive from WebViewPage, or WebViewPage<TModel>.]
   System.Web.Mvc.WebViewPage.ConfigurePage(WebPageBase parentPage) +180
   System.Web.WebPages.<>c__DisplayClass7.<RenderPageCore>b__6(TextWriter writer) +90
   System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) +12
   System.Web.WebPages.WebPageBase.Write(HelperResult result) +80
   System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body) +66
   System.Web.WebPages.WebPageBase.PopContext() +279
   System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +98
   System.Web.WebPages.WebPageHttpHandler.ProcessRequestInternal(HttpContext context) +223

如果我转到http://www.mydomain.com/Home/它可以正常工作，但如果我转到http://www.mydomain.com/则会抛出上述错误。谢谢。

添加目录结构

Root
  Models
  Controllers
  ....
  Views
    Home
    Account
    ....