AreaRegistration.RegisterAllAreas() is not Registering Rules For Area

Question

I have an MVC 4 web application which consists some areas. I have a problem with the routing rules of an area named \"Catalog\". The RouteConfig.cs file is:

Answer 1

I think due to Visual Studio's caching, some of the dll's aren't compiled properly and this situation can happen. If you do, delete all temp files from following locations:

• C:\Temp
• C:\Users\%Username%\AppData\Local\Microsoft\VisualStudio
• C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files
• C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files
• Path\To\Your\Project\obj\Debug

Update :

• AppData\Local\Temp\Temporary ASP.NET Files

Then restart the Visual Studio. This is how i resolved.

Answer 2

Just add the namespace of your controllers to the AreaRegistration:

public override void RegisterArea(AreaRegistrationContext context)
    {
        context.MapRoute(
            "Admin_default",
            "Admin/{controller}/{action}/{id}",
            new { controller = "Home", action = "Index", id = UrlParameter.Optional },
            **namespaces: new string[] { "Web.Admin.Controllers" }**
        );
    }