OAGIS schema validation

We have extended syncCatalog from OAGIS 9.2. However, when I use pub.schema:validate I get the following error for each of the XML nodes.
[ISC.0082.9003] Unable to locate a matching element declaration

Please let me know how you would do schema validation if you are using OAGIS XSD.

Thanks

Please check these articles on Advantage it could give you some info:

http://advantage.webmethods.com/article/?id=SR-1-61133281
http://advantage.webmethods.com/article/?id=1614332662

HTH,
RMG