Problems with XSLT

[Kyle Adams]

I'm beginning to play around with XSLT, and I've running into an odd error message. 
I'm using Saxon as my XSL parser; my classpath includes saxon.jar.  This is the style 
task being performed when I get the error:

        <style basedir="." 
           destdir="." 
           style="style/build.xsl" 
           in="myProject.xml" 
           out="buildMyProject.xml" />

This is the error message:

java.lang.NoSuchMethodError: javax.xml.parsers.SAXParser: method 
getXMLReader()Lorg/xml/sax/XMLReader; not found
                          ^----------------------------^

I'm especially puzzled by the section highlighted above.  Anyone know what's going one?

Kyle