wsutil generating different code from wsdl file resulting in an error RRS feed

  • Question

  • Hi,

    I have a wsdl file that has a struct containing a count and a pointer (like an struct for arrays). A method gets ONE of these structs as a parameter. 

    When looking at the generated code, it looks like wsutil has "optimized" the call and I have to pass the count and the pointer directly (which both was inside a struct in the wsdl)

    If I do so it compiles, but I get a "serialization error" at runtime. The error message is in german (and I could not change it to english, VS and Win10 are set to english, I tried passing LANGID to both WS_ERROR and proxy instances. It's either german or no error message at all.)

    The HRESULT ist INVALID_PARAM and the message points to the struct param.

    I try to translate the error message: "A struct which can be inherited cannot be used within this context".

    I will try to post more details once I am back at my workplace. 

    What does this error mean? Does the generator create defective code? I took a look at all generated methods, and it looks like ALL "simple array like structs" get "optimized". And none of them actually work.

    Do I miss something? I am trying to get a hold of this for three days now and I am really stuck.



    Tuesday, February 4, 2020 5:09 PM

All replies

  • Hello pettersson,

    Are you programming in C++? And are you developing win32 application using Windows Web Services API?

    >>>I have a wsdl file that has a struct containing a count and a pointer (like an struct for arrays). 

    Show how do you define it.

    >>>The HRESULT ist INVALID_PARAM and the message points to the struct param.

    Which function cause this error and how the parameter passed to?

    I can do a further investigation if you can show related code and exact error message.

    Best regards,


    MSDN Community Support
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    Wednesday, February 5, 2020 2:04 AM
  • Hello Rita,

    I am using C++/VS2019/Win10 with WindowsWebServices. I am currently building a small sample to illustrate the problem, and which I will upload in a few minutes. It seems like it is a problem with "inherited parameter classes", are they not supported by WSW / wsutil?

    thanks a lot and regards


    Wednesday, February 5, 2020 6:31 AM
  • I could not find a way to attach a file, so here is the wsdl definition of my testcase:

    <?xml version="1.0" encoding="UTF-8" ?>
          <xs:schema targetNamespace="testcase" elementFormDefault="qualified">
             <xs:complexType name="SomeDataType">
                   <xs:element name="some_string" type="xs:string">
                   <xs:element name="some_int" type="xs:int">
                   <xs:element name="some_bool" type="xs:boolean">
             <xs:complexType name="SomeDataTypes">
                   <xs:element name="SomeDataType" minOccurs="0" maxOccurs="unbounded" type="tns:SomeDataType" />
       <xs:element name="TestCaseAPI___SomeCall">
                <xs:element name="symbolDatas" minOccurs="1" maxOccurs="1" type="tns:SomeDataTypes">
                <xs:element name="some_string" minOccurs="1" maxOccurs="1" type="xs:string">
                <xs:element name="some_int" minOccurs="1" maxOccurs="1" type="xs:int">
       <wsdl:message name="TestCaseAPI___SomeCallRequest">
          <wsdl:part name="parameters" element="tns:TestCaseAPI___SomeCall" />
       <wsdl:message name="TestCaseAPI___SomeCallResponse">
       <wsdl:portType name="TestCaseAPI">
          <wsdl:operation name="SomeCall">
             <wsdl:input message="tns:TestCaseAPI___SomeCallRequest" />
             <wsdl:output message="tns:TestCaseAPI___SomeCallResponse" />
       <wsdl:binding name="TestCaseAPIBinding" type="tns:TestCaseAPI">
          <soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
             <wsdl:operation name="SomeCall">
                <soap:operation soapAction="urn:TestCaseAPI#SomeCall" style="document" />
                   <soap:body use="literal" />
                   <soap:body use="literal" />
       <wsdl:service name="TestCaseAPI">
          <wsdl:port name="TestCaseAPIPort" binding="tns:TestCaseAPIBinding">
             <soap:address location="https://localhost:47110?service=TestCaseAPI" />

    If I generate the code using wsutil, the 'SomeDataTypes' parameter gets "resolved" to use its content directly.

    Hope that helps to find the problem

    thanks in advance


    Wednesday, February 5, 2020 9:20 AM
  • And the error message is as follow:

    Serialisierungsfehler beim Schreiben eines Elements mit WS_WRITE_OPTION "1", Name "TestCaseAPI__SomeCall" und Namespace "testcase". 
    Error: Serialisierungsfehler beim Schreiben eines Felds mit WS_TYPE "26 (0x1A)", WS_FIELD_MAPPING "3", Name "symbolDatas" und Namespace "testcase".
    Error: Eine Struktur, die Ableitungen unterstützt, kann in diesem Kontext nicht verwendet werden.

    in English it should be something like:

    Serialization error when writing an element with WS_WRITE_OPTION "1", Name "TestCaseAPI__SomeCall" and Namespace "testcase".
    Error: Serialization error when writing a field with WS_TYPE "26 (0x1A)", WS_FIELD_MAPPING "3", Name "symbolDatas" and Namespace "testcase". 
    Error: A structure that supports resolutions, can not be used in this context.

    Wednesday, February 5, 2020 9:24 AM