XML Connector Problem

hi,

i created one xml file and xsl file for it. i placed both file in same directory. i connected thru XML Connector. in source URL and transform i gave xml file path. but when i test it, it throw this error:

Error during XSL Transformation, javax.xml.transform.TransformerConfigurationException: javax.xml.transform.TransformerException: org.xml.sax.SAXException: Missing or incorrect XSLT Namespace.

what is the problem? how can to solve this?

- senthil