u8 构造APIBroker 报错，大佬帮忙看一下，急急！！

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报错位置：

            //第四步：构造APIBroker

            U8ApiBroker broker = new U8ApiBroker(myApiAddress, envContext);

System.InvalidOperationException:无法反射方法 MOMQueryServiceWSProxy.GetMessage。---> System.InvalidOperationException: 来自命名空间“XXX”的 XML 元素“GetMessage”引用了某个方法和类型。请使用 WebMethodAttribute 更改该方法的消息名称，或使用XmlRootAttribute 更改该类型的根元素。

   在System.Xml.Serialization.XmlReflectionImporter.ReconcileAccessor(Accessoraccessor, NameTable accessors)

   在System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(StringelementName, String ns, XmlReflectionMember[] members, BooleanhasWrapperElement, Boolean rpc, Boolean openModel, XmlMappingAccess access)

   在System.Web.Services.Protocols.SoapReflector.ImportMembersMapping(XmlReflectionImporterxmlImporter, SoapReflectionImporter soapImporter, BooleanserviceDefaultIsEncoded, Boolean rpc, SoapBindingUse use, SoapParameterStyleparamStyle, String elementName, String elementNamespace, Boolean nsIsDefault,XmlReflectionMember[] members, Boolean validate, Boolean openModel, String key,Boolean writeAccess)

   在System.Web.Services.Protocols.SoapReflector.ReflectMethod(LogicalMethodInfomethodInfo, Boolean client, XmlReflectionImporter xmlImporter,SoapReflectionImporter soapImporter, String defaultNs)

   --- 内部异常堆栈跟踪的结尾 ---

   在System.Web.Services.Protocols.SoapReflector.ReflectMethod(LogicalMethodInfomethodInfo, Boolean client, XmlReflectionImporter xmlImporter,SoapReflectionImporter soapImporter, String defaultNs)

   在System.Web.Services.Protocols.SoapClientType.GenerateXmlMappings(Type type,ArrayList soapMethodList, String serviceNamespace, BooleanserviceDefaultIsEncoded, ArrayList mappings)

   在System.Web.Services.Protocols.SoapClientType..ctor(Type type)

   在System.Web.Services.Protocols.SoapHttpClientProtocol..ctor()

   在UFSoft.AIF.MOM.Adapter.MOMQueryServiceWSProxy..ctor(String url)

   在UFSoft.AIF.MOM.Adapter.MOMQueryServiceProxyFactory.CreateMOMQueryService(CommunicationTypecommunicationType, String sServer)

   在 UFSoft.AIF.MOM.Adapter.MOMAdapter..ctor()

   在UFIDA.U8.U8MOMAPIFramework.MomServiceBroker..ctor(MOMServiceAddressserviceAddress, MOMEnvContext envContext)

   在UFIDA.U8.U8APIFramework.U8ApiBroker..ctor(U8ApiAddress apiAddress, U8EnvContextenvContext)

   在UFInterface.U8.V10X.U8APIHelper.StoreInOutAdd(clsLogin u8Login, StringapiAddress, Connection connection, String sVouchType, IXMLDOMDocument2 domHead,IXMLDOMDocument2 domBody, Boolean bCheck, Boolean bBeforCheckStock, BooleanbIsRedVouch, String& errMsgRet, String& VouchIdRet)

849830265

用无参数DOM方式调用