Asp.net mvc 4 为什么赢了'；这不是我的MVC4手稿吗？

我正在将一个MVC3 web项目转换为MVC4。我创建了一个ElmahHandleErrorAttribute，它继承了HandleErrorAttribute，该属性在MVC3中运行良好，在本地开发人员机器上也运行良好，但在测试环境中会引发以下异常

[InvalidOperationException: The given filter instance must implement one or more of the following filter interfaces: IAuthorizationFilter, IActionFilter, IResultFilter, IExceptionFilter.]
   System.Web.Mvc.GlobalFilterCollection.ValidateFilterInstance(Object instance) +110
   System.Web.Mvc.GlobalFilterCollection.AddInternal(Object filter, Nullable`1 order) +17
   System.Web.Mvc.GlobalFilterCollection.Add(Object filter) +12
   Home2Me.MvcApplication.RegisterGlobalFilters(GlobalFilterCollection filters) in c:\###\Home2Me\Global.asax.cs:16
   Home2Me.MvcApplication.Application_Start() in c:\###\Home2Me\Global.asax.cs:118

[HttpException (0x80004005): The given filter instance must implement one or more of the following filter interfaces: IAuthorizationFilter, IActionFilter, IResultFilter, IExceptionFilter.]
   System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +9249709
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +131
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +194
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +339
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +253

[HttpException (0x80004005): The given filter instance must implement one or more of the following filter interfaces: IAuthorizationFilter, IActionFilter, IResultFilter, IExceptionFilter.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9164336
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +256

这门课真的没有什么特别之处。这与Elmah的标准版本非常接近

public class ElmahHandleErrorAttribute : System.Web.Mvc.HandleErrorAttribute
{

    /// <summary>
    /// Called when an exception occurs.
    /// </summary>
    /// <param name="context"></param>
    public override void OnException(ExceptionContext context)
    {
        base.OnException(context);
        if (!context.ExceptionHandled) return; // if unhandled, will be logged anyhow
        var e = context.Exception;
        HandleException(e);
    }

... (code snipped for brevity) ...

}

过滤器在一个单独的程序集中定义，该程序集也更新为MVC4。我有多个使用此筛选器的项目。其中一个可以在测试环境中正常工作，另一个也有同样的问题

---

有什么想法可能是错误的吗？我确信项目中的所有MVC3引用都已正确更新，包括根目录和视图目录中的web.config文件。它在本地工作，我卸载了MVC3并删除了所有“额外”的MVC3 DLL

我相信我找到了答案。我在根web.config文件中添加了一个运行时部分，以将MVC3引用转换为MVC4

<configuration>
    ... (snipped for brevity) ...
    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
            </dependentAssembly>
        </assemblyBinding>
    </runtime>
</configuration>

... （为了简洁起见被剪掉了）。。。

我宁愿修复引用MVC3的任何内容，但我不知道这可能是什么。这将是一个足够好的答案

<configuration>
    ... (snipped for brevity) ...
    <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
                <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
            </dependentAssembly>
        </assemblyBinding>
    </runtime>
</configuration>