Is this error reported for xith-tk or xith3d? This class is in xith3d. And if xith-tk dosn't have a correctly setup linkage with xith3d (for some reason), then this class will be unknown. The SVN trunk(s) should be correctly setup to be linked. Please make sure, this is the case for your copies.
Actually, it's in my own project...Should I have xith3d and xith-tk added as "Class Folders", or as "A required project on the build path"? More distinctly, would I add it from the "Projects" tab, or the "Libraries" tab?
One more thing, should they be checked or unchecked in the "Order and Export" tab?
Thanks in advance,
Kukanani