<p>Business Objects Web Services returns error codes and I have yet to find a good resource where these are listed and what they mean.  I am currently getting an "The resultset was empty. (Error: WBP 42019)".  Any ideas on where these might be listed?  I've called Business Objects support and the tech couldn't even tell me.  Anyone?</p>

Perhaps
This
? (PDF Link - beware)
Found here: (Google cache, as the page appears dead):
http://209.85.173.104/search?q=cache:fyB21Ywrj-MJ:support.businessobjects.com/communityCS/TechnicalPapers/pecodes.pdf.asp+%22Business+Objects%22+%22Error+Codes%22&hl=en&ct=clnk&cd=1&gl=us