MVC4设置起始页为Areas里的某个页面出现问题

我想设置区域Stage里的Controller的Index为起始页，RouteConfig做了这样的修改

routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
            namespaces: new string[] { "Products.Areas.Stage.Controllers" }
        ).DataTokens.Add("Areas", "Stage");

为什么跳转的还是原来的起始页呢？

routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
namespaces: new string[] { "Products.Areas.Stage.Controllers" }
).DataTokens.Add("area", "Stage");

routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
namespaces: new string[] { "Products.Areas.Stage.Controllers" }
).DataTokens.Add("area", "Stage");