The absence of "Ajax" does not exist in the namespace "System.Web.Mvc"

Question

I set out examples from the book. The first one is really simple .. a few lines of code in a view (MVC).

I run the code, but I get an error:

Compilation error

Description. An error occurred while compiling the resource required to service this request. Review the specific error data below and modify the source code accordingly.

Compiler Error Message: CS0234: The type or name of the namespace "Ajax" does not exist in the namespace "System.Web.Mvc" (do you miss the assembly reference?)

Source Error:


Line 22:     using System.Web.WebPages;
Line 23:     using System.Web.Mvc;
Line 24:     using System.Web.Mvc.Ajax;
Line 25:     using System.Web.Mvc.Html;
Line 26:     using System.Web.Routing;

Source File: c:\Users\Aindriu\AppData\Local\Temp\Temporary ASP.NET Files\root\6882868f\b519e811\App_Web_index.cshtml.a8d08dba.h-o4pos5.0.cs    Line: 24 

- () Manage Nuget Packages - MVC - MVC... ..... , ..

? , MVC...

Answer 1

MVC NuGet. : > Windows > . :

Install-Package Microsoft.AspNet.Mvc -Version 4.5.1

Mvc.

Answer 2

Visual Studio, "" dll System.Web.Mvc. " " "".

bin\Debug bin\Release ( , ) , Visual Studio .