Question

我正在使用Nginx + FastCGI-Mono-Server来托管一个小的asp.net Web服务。它使用FastCGI-Mono-Server2（即.Net 2.0版本）运行得很好。我现在需要将asp.net应用程序升级到.net 4.0。这意味着我需要升级到FastCGI-Mono-Server4。我把所有正确的文件放在适当的位置。有用！然而，它始终因一个神秘的错误而崩溃。

这是错误：

异常：System.Runtime.FatalException

消息：对象引用未设置为对象的实例。

StackTrace：在System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4（MessageRpc＆amp; rpc）在System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31（MessageRpc＆amp; rpc）在System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3（MessageRpc＆amp; rpc）在System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2（MessageRpc＆amp; rpc）在System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11（MessageRpc＆amp; rpc）在System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1（MessageRpc＆amp; rpc）在System.ServiceModel.Dispatcher.MessageRpc.Process（Boolean isOperationContextSet）在System.ServiceModel.Dispatcher.ChannelHandler.DispatchAndReleasePump（RequestContext请求，Boolean cleanThread，OperationContext currentOperationContext）在System.ServiceModel.Dispatcher.ChannelHandler.HandleRequest（RequestContext请求，OperationContext currentOperationContext）在System.ServiceModel.Dispatcher.ChannelHandler.AsyncMessagePump（IAsyncResult结果）在System.ServiceModel.Dispatcher.ChannelHandler.OnAsyncReceiveComplete（IAsyncResult结果）在System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame（IAsyncResult结果）在System.Runtime.AsyncResult.Complete（Boolean completedSynchronously） at System.ServiceModel.Channels.FramingDuplexSessionChannel.TryReceiveAsyncResult.OnReceive（IAsyncResult result）在System.Runtime.Fx.AsyncThunk.UnhandledExceptionFrame（IAsyncResult结果）在System.Runtime.AsyncResult.Complete（Boolean completedSynchronously） at System.ServiceModel.Channels.SynchronizedMessageSource.ReceiveAsyncResult.OnReceiveComplete（Object state）在System.ServiceModel.Channels.SessionConnectionReader.OnAsyncReadComplete（对象状态）在System.ServiceModel.Channels.SocketConnection.FinishRead（）在System.ServiceModel.Channels.SocketConnection.AsyncReadCallback（Boolean hasResult，Int32 error，Int32 bytesRead）在System.ServiceModel.Channels.OverlappedContext.CompleteCallback（UInt32错误，UInt32 numBytes，NativeOverlapped * nativeOverlapped）在System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame（UInt32错误，UInt32 bytesRead，NativeOverlapped * nativeOverlapped）在System.Threading._IOCompletionCallback.PerformIOCompletionCallback（UInt32 errorCode，UInt32 numBytes，NativeOverlapped * pOVERLAP）

InnerException：System.NullReferenceException

消息：对象引用未设置为对象的实例。

StackTrace：at System.Web.HttpApplication.ThreadContext.Enter（Boolean setImpersonationContext）在System.Web.HttpApplication.OnThreadEnterPrivate（Boolean setImpersonationContext）在System.Web.AspNetSynchronizationContext.CallCallbackPossiblyUnderLock（SendOrPostCallback回调，对象状态）在System.Web.AspNetSynchronizationContext.CallCallback（SendOrPostCallback回调，对象状态）在System.Web.AspNetSynchronizationContext.Post（SendOrPostCallback回调，对象状态）在System.ServiceModel.Dispatcher.ThreadBehavior.BindCore（MessageRpc＆amp; rpc，Boolean startOperation）在System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4（MessageRpc＆amp; rpc）

我在项目中有一个IHttpAsyncHandler。我想知道它是否与此有关。当我搜索我的错误时，我发现人们（像这样：wcf callback exception after updating to .net 4.0）推荐这个属性：

[CallbackBehavior（UseSynchronizationContext =假）]

据我所知，这是一个WCF，与我的asp.net Web服务器无关。任何想法将不胜感激！

EV

Answer 1

运行

ln -s /opt/mono-3.2/lib/mono/4.0/fastcgi-mono-server4.exe /opt/mono-3.2/lib/mono/4.5/fastcgi-mono-server4.exe

和

使用4.5目录中的fastcgi服务器

/opt/mono-3.2/lib/mono/4.5/fastcgi-mono-server4.exe

如果Mono安装在其他位置，请将/opt/mono-3.2替换为单声道前缀

使用Nginx + FastCGI-Mono-Server4从ASP.Net 3.5迁移到4.0后出错

1 个答案: