Storage scopes cannot be created when _AppStart is executing

This is a very common error while working on Razor application very first time.

To fix this issue add the reference of

using System.Web.WebPages.Scope;
using System.Reflection;

and then add the below event in Global.asax

protected void Application_BeginRequest()
       {
           var ob = typeof(
                       AspNetRequestScopeStorageProvider).Assembly.GetType(
                       "System.Web.WebPages.WebPageHttpModule").GetProperty
                           ("AppStartExecuteCompleted", 
               BindingFlags.NonPublic | BindingFlags.Static);
           ob.SetValue(null, true, null);
       }