เนมสเปซไม่ถูกต้องเมื่อสร้างคลาสจาก WSDL และ XSD ด้วย svcutil

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" 
                  xmlns:tns="http://sample.com/" 
                  xmlns:types="http://sample.com/types" 
                  xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" 
                  xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
                  xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" 
                  xmlns:ns="http://smaple.com/types" 
                  name="Sample" 
                  targetNamespace="http://sample.com/">
    <wsdl:types>
        <xsd:schema targetNamespace="http://sample.com/types" 
                xmlns="http://sample.com/types">
            <xsd:include schemaLocation="Sample.xsd"/>
            <xsd:element name="testReq" type="TestRequestMessage">
            </xsd:element>
      <xsd:element name="testRes" type="TestResponseMessage">
      </xsd:element>
        </xsd:schema>
    </wsdl:types>
    <wsdl:message name="TestReqMessage">
        <wsdl:part name="testReq" element="types:testReq"/>
    </wsdl:message>
    <wsdl:message name="TestResMessage">
        <wsdl:part name="testRes" element="types:testRes"/>
    </wsdl:message>
    <wsdl:portType name="Test_portType">
        <wsdl:operation name="TestOp">
            <wsdl:input message="tns:TestReqMessage"/>
            <wsdl:output message="tns:TestResMessage"/>
        </wsdl:operation>
    </wsdl:portType>
    <wsdl:binding name="Test_Binding" type="tns:Test_portType">
        <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
        <wsdl:operation name="TestOp">
            <soap:operation soapAction="urn:#TestOp" style="document"/>
            <wsdl:input>
                <soap:body use="literal"/>
            </wsdl:input>
            <wsdl:output>
                <soap:body use="literal"/>
            </wsdl:output>
        </wsdl:operation>
    </wsdl:binding>
    <wsdl:service name="Test_XMLService">
        <wsdl:port name="Test-port" binding="tns:Test_Binding">
            <soap:address location="http://dummy.sample.com/Test-port"/>
        </wsdl:port>
    </wsdl:service>
</wsdl:definitions>
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
            xmlns="http://sample.com/types" 
            xmlns:altova="http://www.altova.com/xml-schema-extensions" 
            targetNamespace="http://sample.com/types" 
            elementFormDefault="qualified">
    <!-- -->
    <!--Root elements -->
    <!-- -->
    <xsd:element name="TestRequestMessageElement" type="TestRequestMessage">
        <xsd:annotation>
            <xsd:documentation>Request</xsd:documentation>
        </xsd:annotation>
    </xsd:element>
  <xsd:element name="TestResponseMessageElement" type="TestResponseMessage">
    <xsd:annotation>
      <xsd:documentation>Response</xsd:documentation>
    </xsd:annotation>
  </xsd:element>
    <!-- -->
    <!--Complex types -->
    <!-- -->
  <xsd:complexType name="TestResponseMessage">
    <xsd:sequence>
      <xsd:element name="el1" type="Element1">
      </xsd:element>
      <xsd:element name="el2" type="Element2">
      </xsd:element>
    </xsd:sequence>
  </xsd:complexType>
    <xsd:complexType name="TestRequestMessage">
        <xsd:sequence>
            <xsd:element name="el1" type="Element1">
            </xsd:element>
            <xsd:element name="el2" type="Element2">
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>
    <xsd:complexType name="Element2">
        <xsd:sequence>
            <xsd:element name="no1">
                <xsd:simpleType>
                    <xsd:restriction base="xsd:integer">
                        <xsd:minInclusive value="0"/>
                        <xsd:maxInclusive value="9"/>
                    </xsd:restriction>
                </xsd:simpleType>
            </xsd:element>
            <xsd:element name="no2">
                <xsd:simpleType>
                    <xsd:restriction base="xsd:integer">
                        <xsd:minInclusive value="0"/>
                        <xsd:maxInclusive value="99999999"/>
                    </xsd:restriction>
                </xsd:simpleType>
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>
    <xsd:complexType name="Element1">
        <xsd:sequence>
            <xsd:element name="no3" minOccurs="0">
            </xsd:element>
            <xsd:element name="date1" type="xsd:dateTime" minOccurs="0">
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>
</xsd:schema>