namespace name 'Mvc' does not exist in the namespace 'System.Web'

[loll2]

I tryed:
tools->NugetPackageManager->PackageManagerConsole-> Install-Package Microsoft.AspNet.Mvc
and:
tools->NugetPackageManager->Manage NuGet Packages for Solution->Microsoft.AspNet.Mvc->install
and added into packages.config->
package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net40" />
but error still remained:
namespace name 'Mvc' does not exist in the namespace 'System.Web'