WcfSvcHost.exe每个 WCF 项目 VS2013 上的访问冲突异常

我在VS2013中有这样的问题：

每当我尝试调试 WCF 库项目时，都会在启动时收到错误：

WcfSvcHost.exe 中发生了类型为">System.AccessViolationException"的未处理异常。

即使尝试从模板调试新的 WCF 项目，也是一样的 - 不起作用。事件查看器：

.NET 运行时异常
App： WcfSvcHost.exe
版本：v4.0.30319
异常：System.AccessViolationException

叠：

in System.Net.UnsafeNclNativeMethods.SetFileCompletionNotificationModes(CriticalHandle handle, FileCompletionNotificationModes modes)
in System.Net.HttpListener.CreateRequestQueueHandle()
in System.Net.HttpListener.Start()
in System.ServiceModel.Channels.SharedHttpTransportManager.OnOpen()
in System.ServiceModel.Channels.TransportManager.Open(TransportChannelListener channelListener)
in System.ServiceModel.Channels.TransportManagerContainer.Open(SelectTransportManagersCallback selectTransportManagerCallback)
in System.ServiceModel.Channels.HttpChannelListener`1.OnOpen(TimeSpan timeout)
in System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
in System.ServiceModel.Dispatcher.ChannelDispatcher.OnOpen(TimeSpan timeout)
in System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
in System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout)
in System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
in Microsoft.Tools.SvcHost.ServiceHostHelper.OpenService(ServiceInfo info)
in Microsoft.Tools.SvcHost.ServiceHostHelper.OpenService(System.String)
in Microsoft.Tools.SvcHost.MainForm.theBackgroundWorker_DoWork(System.Object, System.ComponentModel.DoWorkEventArgs)
in System.ComponentModel.BackgroundWorker.WorkerThreadStart(System.Object)
in System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr, System.Object[], System.Object, System.Object[] ByRef)
in System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(System.Runtime.Remoting.Messaging.IMessage, System.Runtime.Remoting.Messaging.IMessageSink)
in System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
in System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
in System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
in System.Threading.ThreadPoolWorkQueue.Dispatch()`

事件查看器中的应用程序错误：

导致应用错误：WcfSvcHost.exe，版本：12.0.21005.1，时间戳：0x524fc58b
导致错误的模块：内核基础.dll，版本：6.3.9600.17278，时间戳：0x53eebf2e
异常代码：0xe0434352
导致进程 ID：0x8d8
错误应用程序路径： C：''Program Files (x86(''Microsoft Visual Studio 12.0''Common7''IDE''WcfSvcHost.exe
错误模块路径：C：''Windows''system32''KERNELBASE.dll
Windows：8.1 Pro x64，所有可用的更新都在
VS 2013 专业版 12.0.31101.00 更新 4

我将非常感谢任何帮助，用这个把我的头撞在墙上。