I use wcf-sap adapter for generate the schema of IDoc that named "YHREMPMASTER". but throw following error message.

System.Xml.Schema.XmlSchemaException: The complexType 'http://Microsoft.LobServices.Sap/2007/03/Types/Idoc/2/YHREMPMASTER//731:YHREMPMASTER' has already been declared.

Server stack trace:    at System.Xml.Schema.XmlSchemaSet.InternalValidationCallback(Object sender, ValidationEventArgs e)    at System.Xml.Schema.BaseProcessor.SendValidationEvent(XmlSchemaException e, XmlSeverityType severity)    at System.Xml.Schema.BaseProcessor.AddToTable(XmlSchemaObjectTable table, XmlQualifiedName qname, XmlSchemaObject item)    at System.Xml.Schema.Preprocessor.Preprocess(XmlSchema schema, String targetNamespace, ArrayList imports)    at System.Xml.Schema.Preprocessor.Execute(XmlSchema schema, String targetNamespace, Boolean loadExternals)    at System.Xml.Schema.XmlSchemaSet.PreprocessSchema(XmlSchema& schema, String targetNamespace)    at System.Xml.Schema.XmlSchemaSet.Reprocess(XmlSchema schema)    at Microsoft.ServiceModel.Channels.Common.Design.WsdlBuilderHelper.GetServiceDescription()    at Microsoft.ServiceModel.Channels.Common.Design.WsdlBuilder.GetWsdl(MetadataRetrievalNode[] nodes, Uri uri, TimeSpan timeout)    at Microsoft.Adapters.SAP.SapCustomWsdlRetrieval.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()

[Fixed]

[Solution]

We need change the root segment name.