[我这里还有一个错误：
它的日志是这样的
WebHost 无法处理请求。
发件人信息: System.ServiceModel.ServiceHostingEnvironment+HostingManager/32001227
异常: System.ServiceModel.ServiceActivationException: 由于编译过程中出现异常，无法激活服务“/Autodiscover/autodiscover.xml”。异常消息为: 找不到方法:“System.String System.ServiceModel.Activation.Iis7Helper.ExtendedProtectionDotlessSpnNotEnabledThrowHelper(System.Object)”。。 ---> System.MissingMethodException: 找不到方法:“System.String System.ServiceModel.Activation.Iis7Helper.ExtendedProtectionDotlessSpnNotEnabledThrowHelper(System.Object)”。
在 System.ServiceModel.WasHosting.MetabaseSettingsIis7V2.WebConfigurationManagerWrapper.BuildExtendedProtectionPolicy(ExtendedProtectionTokenChecking tokenChecking, ExtendedProtectionFlags flags, List`1 spnList)
在 System.ServiceModel.WasHosting.MetabaseSettingsIis7V2.WebConfigurationManagerWrapper.GetExtendedProtectionPolicy(ConfigurationElement element)
在 System.ServiceModel.WasHosting.MetabaseSettingsIis7V2.ProcessWindowsAuthentication(String siteName, String virtualPath, HostedServiceTransportSettings& transportSettings)
在 System.ServiceModel.WasHosting.MetabaseSettingsIis7V2.CreateTransportSettings(String relativeVirtualPath)
在 System.ServiceModel.Activation.MetabaseSettingsIis.GetTransportSettings(String virtualPath)
在 System.ServiceModel.Activation.MetabaseSettingsIis.GetAuthenticationSchemes(String virtualPath)
在 System.ServiceModel.Channels.HttpChannelListener.ApplyHostedContext(VirtualPathExtension virtualPathExtension, Boolean isMetadataListener)
在 System.ServiceModel.Channels.HttpsChannelListener.ApplyHostedContext(VirtualPathExtension virtualPathExtension, Boolean isMetadataListener)
在 System.ServiceModel.Channels.HttpsTransportBindingElement.BuildChannelListener[TChannel](BindingContext context)
在 System.ServiceModel.Channels.BindingContext.BuildInnerChannelListener[TChannel]()
在 System.ServiceModel.Channels.BindingElement.BuildChannelListener[TChannel](BindingContext context)
在 Microsoft.Exchange.Autodiscover.WCF.LegacyMessageEncoderBindingElement.BuildChannelListener[TChannel](BindingContext context)
在 System.ServiceModel.Channels.BindingContext.BuildInnerChannelListener[TChannel]()
在 System.ServiceModel.Channels.Binding.BuildChannelListener[TChannel](Uri listenUriBaseAddress, String listenUriRelativeAddress, ListenUriMode listenUriMode, BindingParameterCollection parameters)
在 System.ServiceModel.Description.DispatcherBuilder.MaybeCreateListener(Boolean actuallyCreate, Type[] supportedChannels, Binding binding, BindingParameterCollection parameters, Uri listenUriBaseAddress, String listenUriRelativeAddress, ListenUriMode listenUriMode, ServiceThrottle throttle, IChannelListener& result, Boolean supportContextSession)
在 System.ServiceModel.Description.DispatcherBuilder.BuildChannelListener(StuffPerListenUriInfo stuff, ServiceHostBase serviceHost, Uri listenUri, ListenUriMode listenUriMode, Boolean supportContextSession, IChannelListener& result)
在 System.ServiceModel.Description.DispatcherBuilder.InitializeServiceHost(ServiceDescription description, ServiceHostBase serviceHost)
在 System.ServiceModel.ServiceHostBase.InitializeRuntime()
在 System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout)
在 System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
在 System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(String normalizedVirtualPath)
在 System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)
--- 内部异常堆栈跟踪的结尾 ---
在 System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)
在 System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath)
进程名称: w3wp
进程 ID: 3144
求解！
