This is a newbie configuration problem I suspect.

See return statement comment in code snippet.

    [HttpGet]
    public ActionResult TestService()
    {
        ViewBag.Message = "DataLayer Service";

        Service dataLayerService = new Service {CookieContainer = new CookieContainer()};
        dataLayerService.SetSessionAppName("SAND");
        WebServiceModel webServiceModel = new WebServiceModel();            
        webServiceModel.Result = dataLayerService.GetSessionAppName();

        return this.View(webServiceModel); // <== Cannot resolve View "TestService"            
    }