mono wsdl tool fails to parse salesforce enterprise.wsdl

Question

Anyone know why this wsdl is not liked by the mono wsdl tool? Microsoft parses it. XMethods online wsdl validator parses it. Mono just doesn't seem to like it and I do not know enough to understand why.

# the error
mmcaughan@mmcaughan-dsktop:~/Projects/sftest$ wsdl enterprise.wsdl
Web Services Description Language Utility
Mono Framework v2.0.50727.1433

There where some warnings while generating the code:

enterprise.wsdl - This web reference does not conform to WS-I Basic Profile v1.1 R2718: A wsdl:binding in a DESCRIPTION MUST have the same set of wsdl:operations as the wsdl:portType to which it refers. * Binding 'SoapBinding', in Service Description 'urn:enterprise.soap.sforce.com'

Writing file 'SforceService.cs'

relevant WSDL parts (I think)

  <!-- Soap PortType -->
    <portType name="Soap">
        <operation name="login">
            <documentation>Login to the Salesforce.com SOAP Api</documentation>
            <input message="tns:loginRequest"/>
            <output message="tns:loginResponse"/>
            <fault message="tns:LoginFault" name="LoginFault"/>
            <fault message="tns:UnexpectedErrorFault" name="UnexpectedErrorFault"/>
            <fault message="tns:InvalidIdFault" name="InvalidIdFault"/>
        </operation>


 <!-- Soap Binding -->
    <binding name="SoapBinding" type="tns:Soap">
        <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/&gt;
        <operation name="login">
            <soap:operation soapAction=""/>
            <input>
                <soap:header use="literal" message="tns:Header" part="LoginScopeHeader"/>
                <soap:body parts="parameters" use="literal"/>
            </input>
            <output>
                <soap:body use="literal"/>
            </output>
            <fault name="LoginFault">
                <soap:fault name="LoginFault" use="literal"/>
            </fault>
            <fault name="UnexpectedErrorFault">
                <soap:fault name="UnexpectedErrorFault" use="literal"/>
            </fault>
            <fault name="InvalidIdFault">
                <soap:fault name="InvalidIdFault" use="literal"/>
            </fault>
        </operation>