System.Web.Mvc 버전을 찾을 수 없습니다.

MVC 앱을 컴파일 한 후 다음 오류가 발생합니다.

[FileNotFoundException: Could not load file or assembly 'System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]

[FileNotFoundException: Could not load file or assembly 'System.Web.Mvc, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
   HNZPartsExtract.PHAWeb.MvcApplication.Application_Start() in d:\test\CCA GMOV\HNZPartsExtract\HZAPartsExtract.PHAWeb\Global.asax.cs:19

[HttpException (0x80004005): Could not load file or assembly 'System.Web.Mvc, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
   System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +12601341
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +175
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +304
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +404
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +475

[HttpException (0x80004005): Could not load file or assembly 'System.Web.Mvc, Version=5.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +12618388
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +159
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +12458005

버전 4.0을 참조로 추가했기 때문에 왜 그 오류가 발생하는지 잘 모르겠습니다. 5.2가 없지만 5.2가 필요한 것 같습니다. 그러나 현재 개발 환경에서 NuGet 패키지를 설치할 수 없어서 어떻게 해당 dll을 다운로드하여 NuGet없이 추가 할 수 있는지 잘 모르겠습니다.