mvc area出現“找到多個與名為“Home”的控制器匹配的類型”錯誤的解決方法

找到多個與名為“Home”的控制器匹配的類型。如果為此請求(“{controller}/{action}/{id}”)提供服務的路由在搜索匹配此請求的控制器時沒有指定命名空間，則會發生此情況。如果是這樣，請通過調用含有“namespaces”參數的“MapRoute”方法的重載來注冊此路由。”

 

出現該問題的原因是在默認的Golbal.asax.cs文件中已經注冊了默認路由

 

    public class MvcApplication : System.Web.HttpApplication
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            //routes.MapRoute(
            //    "Default", // 路由名稱
            //    "{controller}/{action}/{id}", // 帶有參數的 URL
            //    new { controller = "Home", action = "Index", id = UrlParameter.Optional } // 參數默認值
            //);

            routes.MapRoute(
                  "Member",
                  "Member/{action}/{page}",
                  new { controller = "MemberCenter", action = "List" },
                  new { action = @"Index|List|Detail", page = @"\d+" }
                );

            routes.MapRoute(
                  "Default",
                  "{controller}/{action}/{id}",
                  new { controller = "Home", action = "Index", id = UrlParameter.Optional },
                  new string[] { "MvcStudyDemo.Controllers" }
                  );

        }

 

而在AREAS中有注冊了一個同名的Controller

        public override void RegisterArea(AreaRegistrationContext context)
        {
            context.MapRoute(
                "Order_default",
                "Order/{controller}/{action}/{id}",
                new { action = "Index", id = UrlParameter.Optional },
                new string[] { "MvcStudyDemo.Areas.Order.Controllers" }
              
            );
        }

解決方法就是在每個注冊Router的時候加上命名空間即可。