我正在尝试从现有的WSDL生成.NET SOAP Web服务（使用svcutil）。 WSDL包含以下信息：
<types>
<xsd:schema>
<!-- ... -->
<xsd:complexType name="DoStuffType">
<xsd:sequence>
<xsd:element name="..." type="..." />
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="DoStuffResponseType">
<xsd:sequence>
<xsd:element name="..." type="..." />
</xsd:sequence>
</xsd:complexType>
<xsd:element name="DoStuff" type="tns:DoStuffType" />
<xsd:element name="DoStuffResponse" type="tns:DoStuffResponseType" />
</xsd:schema>
</types>
<message name="DoStuffSoapIn">
<part name="messagePart" element="tns:DoStuff" />
</message>
<message name="DoStuffSoapOut">
<part name="messagePart" element="tns:DoStuffResponse" />
</message>
<portType name="ASoapService">
<operation name="DoStuff">
<input message="tns:DoStuffSoapIn" />
<output message="tns:DoStuffSoapOut" />
</operation>
</portType>
生成的代码编译和部署正常，但 it 生成的WSDL不包含DoStuff操作的详细信息。
如果删除[OperationContract(ReplyAction = "*")]属性，则会从服务中收到以下错误：
System.InvalidOperationException: An exception was thrown in a call to a
WSDL export extension:
System.ServiceModel.Description.DataContractSerializerOperationBehavior
contract: http://example.com/services:ASoapService---->
System.InvalidOperationException: Top level XML element with name
DoStuffResponse in namespace http://example.com/services cannot reference
http://schemas.datacontract.org/2004/07/Generated:DoStuffResponseType type
because it already references a different type
(http://example.com/services:DoStuffResponseType).
Use a different operation name or MessageBodyMemberAttribute to specify a
different name for the Message or Message parts.
如果我从响应代码中删除[MessageContract(IsWrapped="false")]属性，则会收到以下错误：
System.InvalidOperationException: The operation 'DoStuff' could not be loaded
because it has a parameter or return type of type
System.ServiceModel.Channels.Message or a type that has
MessageContractAttribute and other parameters of different types. When using
System.ServiceModel.Channels.Message or types with MessageContractAttribute,
the method must not use any other types of parameters.
此外，从请求代码中删除[MessageContract(IsWrapped="false")]属性会使所有错误消失，但（也许不出意外）会导致请求需要使用<request>元素进行换行。
我需要对生成的代码做什么才能让它重新生成正确的WSDL？