ASP.NET MVC 4 Areas in separate projects not working (view not found)

You could use the RazorGenerator package to embed your Razor views into a separate assembly. Here are the steps to make this work:

  1. Install the Razor Generator Visual Studio extension (Tools -> Extensions and Updates...)
  2. Create a new ASP.NET MVC 4 application using the empty template.
  3. Add a new class library project to the solution called AreasLibrary (you could also use an ASP.NET MVC project template in order to get Intellisense in Razor views)
  4. Install the RazorGenerator.Mvc NuGet to the AreasLibrary project.
  5. Add a controller inside the AreasLibrary project (~/Areas/Admin/Controllers/HomeController.cs):

    public class HomeController: Controller
    {
        public ActionResult Index()
        {
            return View();
        }
    }
    
  6. Add a corresponding view (~/Areas/Admin/Views/Home/Index.cshtml):

    @* Generator: MvcView *@
    
    @{
        Layout = null;
    }
    
    <!DOCTYPE html>
    
    <html>
    <head>
        <meta name="viewport" content="width=device-width" />
        <title>View1</title>
    </head>
    <body>
        <div>
            Index view        
        </div>
    </body>
    </html>
    
  7. In the properties of the view set the Custom Tool to RazorGenerator.

  8. Inside the class library add an ~/Areas/AdminAreaRegistration.cs:

    public class AdminAreaRegistration : AreaRegistration
    {
        public override string AreaName { get { return "Admin"; } }
    
        public override void RegisterArea(AreaRegistrationContext context)
        {
            context.MapRoute(
                "Admin_Default",
                "Admin/{action}/{id}",
                new { controller = "Home", action = "Index", id = "" }
            );
        }
    }
    
  9. All that's left is to reference the class library in the main MVC application.

Reference: http://blog.davidebbo.com/2011/06/precompile-your-mvc-views-using.html