Beginners Learn MVC----MVC3.0 Error HTTP 404

MVC3.0 Framework Development project:

Error encountered while running the program: MVC 3.0 error HTTP 404 The resource You are looking for (or one of its dependencies) may have been removed, or

its the name has changed, or is temporarily unavailable. Please check the following URL and make sure it is spelled correctly.

Cause of the error: the route is incorrect.

Workaround: Open the project's "Global.asax" file, locate the route registration (RegisterRoutes ()) method, and change the controller in the route in it to an existing action. This is the same as when the program runs, the default to open the link, you can modify according to your own needs, do not show here.   

public static void RegisterRoutes (RouteCollection routes)        {            routes. Ignoreroute ("{resource}.axd/{*pathinfo}");            Routes. MapRoute (                "Default",//route name                "{controller}/{action}/{id}",//URL with parameter                new {controller = "Exam", action = "I Ndex ", id = urlparameter.optional}//parameter default value            );        }

Beginners Learn MVC----MVC3.0 Error HTTP 404