title: WebApiConfig does not exist in current context
body: <p>I'm using asp.net mvc 5.I'm doing the following tutorial,
  <a href="http://venkatbaggu.com/signalr-database-update-notifications-asp-net-mvc-usiing-sql-dependency/" rel="noreferrer">http://venkatbaggu.com/signalr-database-update-notifications-asp-net-mvc-usiing-sql-dependency/</a></p>
  
  <p>but in the Global.sax file it says that "WebApiConfig does not exist in current context".why is that?</p>
  
  <p>here are some codes</p>
  
  <pre><code>protected void Application_Start()
      {
          AreaRegistration.RegisterAllAreas();
          FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
          RouteConfig.RegisterRoutes(RouteTable.Routes);
          BundleConfig.RegisterBundles(BundleTable.Bundles);
          GlobalConfiguration.Configure(WebApiConfig.Register); //this is where error shows
          //Start SqlDependency with application initialization
          SqlDependency.Start(connString);
      }
  </code></pre>