Could not run service

I’m trying to create a Web Service Connector with a local WSDL. It imports fine, but I receive the following error message everytime I attempt to run the login procedure:

Could not run the service ‘login’.

com.wm.app.b2b.server.ServiceException: [B2BSERV.0088.9139] Output parameters do not conform to targetOutputSignature:
errorCode=VV-001
pathName=/result
errorMessage=[B2BCORE.0082.9025] Missing Object

It is connecting to my SOAP server and actually performing the login, but the WebMethods chokes on the response.

Any help greatly appreciated.

This error generally comes when ever your output parameter from your service does not match with the output parameter of the service.

Ex

if the final output from your service is :value
then you have to create the Output parameter in the Input/Output as value.