Microsoft.ServiceModel.Channels.Common.MetadataException: Retrieval of Operation Metadata has failed while building WSDL at 'TypedPolling' ---> Microsoft.ServiceModel.Channels.Common.MetadataException: The value "" for the property InboundId is invalid.    at Microsoft.Adapters.Sql.SqlAdapterMetadataResolverHandler.ResolveOperationMetadata(SqlAdapterConnection sqlAdapterConnection, MetadataLookup metadataLookup, String operationId, ISqlAdapterBindingProperties bindingProperties, TimeSpan timeout)    at Microsoft.Adapters.Sql.ASDKConnectionHandler.Microsoft.ServiceModel.Channels.Common.IMetadataResolverHandler.ResolveOperationMetadata(String operationId, TimeSpan timeout, TypeMetadataCollection& extraTypeMetadataResolved)    at Microsoft.ServiceModel.Channels.Common.Design.MetadataCache.GetOperationMetadata(String uniqueId, Guid clientId, TimeSpan timeout)    at Microsoft.ServiceModel.Channels.Common.Design.WsdlBuilder.SearchBrowseNodes(MetadataRetrievalNode[] nodes, WsdlBuilderHelper helper, TimeoutHelper timeoutHelper)    --- End of inner exception stack trace ---

Server stack trace:    at Microsoft.ServiceModel.Channels.Common.Design.AdapterExceptions.ThrowMetadataException(String errorMessage, Object arg, Object source, Exception innerException)    at Microsoft.ServiceModel.Channels.Common.Design.WsdlBuilder.SearchBrowseNodes(MetadataRetrievalNode[] nodes, WsdlBuilderHelper helper, TimeoutHelper timeoutHelper)    at Microsoft.ServiceModel.Channels.Common.Design.WsdlBuilder.GenerateOperationSchemas(WsdlBuilderHelper helper, MetadataRetrievalNode[] nodes, TimeSpan timeout)    at Microsoft.ServiceModel.Channels.Common.Design.WsdlBuilder.GetWsdl(MetadataRetrievalNode[] nodes, Uri uri, TimeSpan timeout)    at Microsoft.Adapters.Sql.SqlAdapterWsdlRetrieval.Microsoft.ServiceModel.Channels.Common.IWsdlRetrieval.GetWsdl(MetadataRetrievalNode[] nodes, Uri uri, TimeSpan timeout)    at Microsoft.ServiceModel.Channels.Common.Design.MetadataExchanger.ProcessMetadataGet(Message message, Uri target, TimeSpan timeout, MetadataLookup metadataLookup)    at Microsoft.ServiceModel.Channels.Common.Design.MetadataExchanger.ProcessMetadataMessage(Message message, Uri target, TimeSpan timeout, MetadataLookup metadataLookup, Message& replyMessage)    at Microsoft.ServiceModel.Channels.Common.Channels.AdapterRequestChannel.Request(Message message, TimeSpan timeout)    at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)    at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)    at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)    at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:    at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)    at Microsoft.ServiceModel.Channels.IMetadataRetrievalContract.GetMetadata(MetadataRetrievalNode[] nodes)    at Microsoft.ServiceModel.Channels.Tools.MetadataSearchBrowse.MetadataPanel.GetWsdl(MetadataRetrievalNode[] nodes)    at Microsoft.ServiceModel.Channels.Tools.MetadataSearchBrowse.MetadataUserControl.GetWsdl()