[flexcoders] webservice wsdl parsing error? help?

[tddclare]

Hi,

I haven't worked with webservices much, but am needing to test out a
service that was produced by a software package my company is
evaluating.  I'm building the flex front end to show the results.

When I run what I have, I get errors when the application launches:
===================================
TypeError: Error #1034: Type Coercion failed: cannot convert "" to
flash.xml.XMLNode.
        at mx.rpc.xml::SchemaContext/::httpResultHandler()
        at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()
        at flash.events::EventDispatcher/dispatchEvent()
        at
mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()
        at
mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resultHandler()
        at mx.rpc::Responder/result()
        at mx.rpc::AsyncRequest/acknowledge()
        at ::DirectHTTPMessageResponder/completeHandler()
        at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()
        at flash.events::EventDispatcher/dispatchEvent()
        at flash.net::URLLoader/flash.net:URLLoader::onComplete()
===================================


My application is relatively simple:
===================================
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
layout="absolute">
        <mx:Script>
                <![CDATA[
                        import mx.rpc.events.FaultEvent;
                        import mx.rpc.events.ResultEvent;
                        
                        public function handleResult(e:ResultEvent):void {
                                trace( "Result: " + e.result );
                        }
                        
                        public function handleFault(e:FaultEvent):void {
                                trace( "Error: " +  e.fault.faultString );
                        }
                ]]>
        </mx:Script>
        <mx:WebService id="mmWebService"
        
wsdl="http://quest3:8000/NasaVDBjoin/servlet/ArtifactDocumentService/MetaMatrixDataServices.wsdl";
                result="handleResult(event)"
                fault="handleFault(event)">
        </mx:WebService>
        <mx:Button id="getDataButton"
                click="mmWebService.getVmdbHrrsJoin(63458);" />
</mx:Application>
===================================


and I suspect I'm not doing something right with setting up the
webservice, as the error occurs after the app starts, before I push
the button.

Here's the WSDL of the web service (I suspect my answer is here, but
again, I'm dumb):
===================================
<definitions name="MetaMatrixDataServices"
targetNamespace="http://com.metamatrix/NasaVDBjoin";>
&#8722;
        <types>
&#8722;
        <xsd:schema targetNamespace="http://com.metamatrix/NasaVDBjoin";>
<xsd:import
namespace="http://www.metamatrix.com/VmdbHrrsIntegration_Input";
schemaLocation="http://quest3:8000/NasaVDBjoin/servlet/ArtifactDocumentService/NasaDemo/DataIntegrationPOC/HrrsVmdbIntegration/VmdbHrrsIntegration_Input.xsd"/>
<xsd:import
namespace="http://www.metamatrix.com/VmdbHrrsIntegration_Output";
schemaLocation="http://quest3:8000/NasaVDBjoin/servlet/ArtifactDocumentService/NasaDemo/DataIntegrationPOC/HrrsVmdbIntegration/VmdbHrrsIntegration_Output.xsd"/>
</xsd:schema>
</types>
&#8722;
        <message
name="VmdbHrrsIntegration_VmdbHrrsJoin_getVmdbHrrsJoin_VmdbHrrsJoin_InputMsg">
&#8722;
        <documentation>
Input message for operation
VmdbHrrsIntegration_VmdbHrrsJoin/getVmdbHrrsJoin.
</documentation>
<part
name="VmdbHrrsIntegration_VmdbHrrsJoin_getVmdbHrrsJoin_VmdbHrrsJoin_InputMsg"
element="schema1:VmdbHrrsJoin_Input"/>
</message>
&#8722;
        <message
name="VmdbHrrsIntegration_VmdbHrrsJoin_getVmdbHrrsJoin_VmdbHrrsJoin_OutputMsg">
&#8722;
        <documentation>
Output message for operation
VmdbHrrsIntegration_VmdbHrrsJoin/getVmdbHrrsJoin.
</documentation>
<part
name="VmdbHrrsIntegration_VmdbHrrsJoin_getVmdbHrrsJoin_VmdbHrrsJoin_OutputMsg"
element="schema2:VmdbHrrsJoin_Output"/>
</message>
&#8722;
        <portType name="VmdbHrrsIntegration_VmdbHrrsJoin">
&#8722;
        <operation name="getVmdbHrrsJoin">
<input
message="tns:VmdbHrrsIntegration_VmdbHrrsJoin_getVmdbHrrsJoin_VmdbHrrsJoin_InputMsg"/>
<output
message="tns:VmdbHrrsIntegration_VmdbHrrsJoin_getVmdbHrrsJoin_VmdbHrrsJoin_OutputMsg"/>
</operation>
</portType>
&#8722;
        <binding name="VmdbHrrsIntegration_VmdbHrrsJoin"
type="tns:VmdbHrrsIntegration_VmdbHrrsJoin">
<soap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http"/>
&#8722;
        <operation name="getVmdbHrrsJoin">
<soap:operation style="document"
soapAction="VmdbHrrsIntegration_WS.VmdbHrrsIntegration_VmdbHrrsJoin.getVmdbHrrsJoin"/>
&#8722;
        <input>
<soap:body use="literal"/>
</input>
&#8722;
        <output>
<soap:body use="literal"/>
</output>
</operation>
</binding>
&#8722;
        <service name="MetaMatrixDataServices">
&#8722;
        <port name="VmdbHrrsIntegration_VmdbHrrsJoin"
binding="tns:VmdbHrrsIntegration_VmdbHrrsJoin">
<soap:address location="http://quest3:8000/NasaVDBjoin/services/service"/>
</port>
</service>
</definitions>
===================================

Thanks for any help.  I'm not sure where to even start looking for the
answer.

-- TC