Parser contanis wrong class

I'm trying to develop a J2me midlet application that uses the kXML parser to read a XML file.

I'm using JBuilder Personal 7 with MobilSet and I have downloaded the kXML 1.21.

When I try to run my application an error occurs: "Cannot access class XmlParser: class file kxml.org.kxml.parser.KxmlParser contains wrong class".

This error occurs in the line where I reference the XmlParser : "XmlParser myParser;".

What is wrong in kXML1.21?

Are there some examples about kXML 2?