我们目前有一个在.NET 4.0上运行的MVC 2应用程序。截至上周，我们执行了所有Windows更新和.NET框架更新。
我们无法再运行我们的网络应用程序并收到以下错误： System.PlatformNotSupportedException - 此操作需要IIS集成管道模式
我们已经将问题追溯到使用HTML.AntiForgery（）标记。如果我们对这些进行评论，我们就能够正确运行该应用程序。
是否有人知道为什么这个方法不能再使用或者为什么会抛出错误？
这是堆栈跟踪：
Error:
System.PlatformNotSupportedException - This operation requires IIS integrated pipeline mode.
Stacktrace:
System.Web.HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerWrapper'. ---> System.TypeInitializationException: The type initializer for 'FormatterGenerator' threw an exception. ---> System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.PlatformNotSupportedException: This operation requires IIS integrated pipeline mode.
at System.Web.HttpRequest.InsertEntityBody()
at System.Web.TraceContext.InitRequest()
at System.Web.TraceContext.VerifyStart()
at System.Web.TraceContext.Write(String category, String message, Exception errorInfo, Boolean isWarning, Boolean writeToDiagnostics)
at System.Web.TraceContext.Write(String category, String message)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
--- End of inner exception stack trace ---
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at System.Web.Mvc.AntiForgeryDataSerializer.FormatterGenerator.TokenPersister.CreateFormatterGenerator()
at System.Web.Mvc.AntiForgeryDataSerializer.FormatterGenerator..cctor()
--- End of inner exception stack trace ---
at System.Web.Mvc.AntiForgeryDataSerializer.Deserialize(String serializedToken)
at System.Web.Mvc.HtmlHelper.GetAntiForgeryTokenAndSetCookie(String salt, String domain, String path)
at System.Web.Mvc.HtmlHelper.AntiForgeryToken(String salt, String domain, String path)
at ASP.views_account_login_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
at System.Web.Mvc.ViewPage.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at System.Web.Mvc.ViewPage.ProcessRequest(HttpContext context)
at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.<>c__DisplayClass4.<Wrap>b__3()
at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.Wrap[TResult](Func`1 func)
at System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride)
at System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride)
at System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage)
at System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm)
at System.Web.Mvc.ViewPage.RenderView(ViewContext viewContext)
at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass14.<InvokeActionResultWithFilters>b__11()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
at System.Web.Mvc.Controller.ExecuteCore()
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.<BeginProcessRequest>b__4()
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass1.<MakeVoidDelegate>b__0()
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
答案 0 :(得分：4)
看起来像是MVC 2中的一个错误。你能禁用跟踪并再次尝试运行该应用程序吗？要禁用跟踪，请将其放在Web.config（see MSDN）中：
<system.web>
<trace enabled="false" />
</system.web>
或者，您可以尝试将应用程序升级到MVC 3或更高版本，后者使用不同的防伪机制，不应与ASP.NET的跟踪机制发生冲突。
答案 1 :(得分：1)
这意味着您的IIS实例正在经典管道模式下运行，而不是集成管道模式。您可以通过在IIS中的应用程序池设置中进行更改来更改它。
http://yanziyang.files.wordpress.com/2010/11/screenshot00172.jpg
答案 2 :(得分：0)
我不知道AntiForgery票证有任何重大更改，但您是否尝试将IIS应用程序池配置更改为Integrated Pipeline？查看此SO帖子以了解差异。
What is the difference between 'classic' and 'integrated' pipeline mode in IIS7?
