Issue with calling Operation Mapping in NWBPM

Dear Experts,

I'm trying to import existing operation mapping from ESR to NWBPM process. Operation mapping is using salesforce wsdl as a external definition in the source interface. After the import it is erring out with an error message as

"DescriptionResourcePathLocationType Could not import WSDL document: Invalid XML schema for namespace 'urn:enterprise.soap.salesforce.com'. Diagnostics: XSD: Type reference 'null#ApiFault' is unresolvedLine: 1Column: 1 XSD: Type reference 'null#LoginFault' is unresolvedLine"

Please advise if anything can be done to resolve this issue.

Regards,

Sudhir Kumar