System.Web.WebPages中的MethodAccessException将mvc 3迁移到mvc 5

使用Visual Studio 2013，我将混合的Asp.Net Webforms / MVC 3 / Framework 4.0 Web应用程序迁移到Asp.Net Webforms / MVC 5.2.2 / Framework 4.5.1。

我按照这些链接中列出的步骤操作：

http://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and- Web的API-2

http://www.asp.net/signalr/overview/signalr-20/getting-started-with-signalr-20/upgrading-signalr-1x-projects-to-20

当我在visual studio中运行应用程序时，我收到此错误：

尝试通过安全透明方法’System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule（）’来访问安全关键方法’System.Web.WebPages.ApplicationPart..ctor（System.Reflection.Assembly，System.String）’失败。

我尝试过在StackOverflow上找到的这些建议，但没有解决问题：

1. 清除bin文件夹并重建
2. 安装Nuget包Microsoft.Aspnet.WebHelpers。
3. 确保System.Web.Mvc和System.Web.WebPages的所有web.config引用都指向正确的版本（分别为5.2.2.0和3.0.0.0）。

任何有关如何找到此错误原因的建议都将非常感激。

错误的完整堆栈跟踪：

[MethodAccessException: Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed.] System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule() +96 System.Web.WebPages.Administration.PreApplicationStartCode.Start() +41 [InvalidOperationException: The pre-application start initialization method Start on type System.Web.WebPages.Administration.PreApplicationStartCode threw an exception with the following error message: Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed..] System.Web.Compilation.BuildManager.InvokePreStartInitMethodsCore(ICollection`1 methods, Func`1 setHostingEnvironmentCultures) +559 System.Web.Compilation.BuildManager.InvokePreStartInitMethods(ICollection`1 methods) +132 System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded) +102 System.Web.Compilation.BuildManager.ExecutePreAppStart() +153 System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +516 [HttpException (0x80004005): The pre-application start initialization method Start on type System.Web.WebPages.Administration.PreApplicationStartCode threw an exception with the following error message: Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed..] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9913572 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +101 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +254