Interface definition missing in WSDL document (<portType> missing)

Im trying to generate a proxy client for a Webservice, but when generating the code I have the following error: "Interface definition missing in WSDL document (<portType> missing)". i have been looking in the forum and there was a lot of post regarding this issue, however none posted how it was solved.

The portType section does exist in the XML

 <portType name="GenLoteSoapPort">
 <operation name="Execute">
  <input message="wsdlns:GenLote.ExecuteSoapIn" /> 
  <output message="wsdlns:GenLote.ExecuteSoapOut" /> 
  </operation>
  </portType>

Any help is appreciated.

Regards, Mauro

Edited by: Mauro Blanc on Aug 31, 2011 7:30 PM