Multiple types were found that match the controller named 'Home' - In two different Areas

Question

I have two areas in my project. Now when I run the program I get this error:

Multiple types were found that match the controller named \'Home\'. This can h         


        

Answer 1

Right click the project and select clean the project. Or else completely empty the bin directory and then re-build again. This should clear of any left over assemblies

Answer 2

I don't know what happen, but this code works fine:

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    routes.MapRoute(
        "Default", // Route name
        "{controller}/{action}/{id}", // URL with parameters
        new { controller = "Home", action = "Index", id = UrlParameter.Optional },
        new string[] { "BaseAdminMVC.Areas.TitomsAdmin.Controllers" }
    );
}

Answer 3

I got this error after doing a rename of my project namespace/assembly.

If you renamed the Namespace/Assembly you might have a leftover assembly/dll from the previous name in your bin folder. Just delete it from there and it should work.