TK Debugger with Xerces-P (OT?)

Hi,

I was just wondering if anyone was using the Perl TK debugger ptkdb with 
Xerces-P?  Under perl 5.6.1 and Xerces-P if I 'use XML::Xerces', and try 
to run through the debugger, I get:

~/scripts$ perl -d:ptkdb Test.pl
"error" is not exported by the XML::Xerces module at 
/usr/local/lib/perl/5.6.1/XML/Xerces.pm line 449
Can't continue after import errors at 
/usr/local/lib/perl/5.6.1/XML/Xerces.pm line 449
BEGIN failed--compilation aborted at 
/usr/local/lib/perl/5.6.1/XML/Xerces.pm line 449.
Compilation failed in require at Test.pl line 3.
BEGIN failed--compilation aborted at Test.pl line 3.

though the default debugger works perfectly.

I think this is probably an issue either with my system or with ptkdb, 
rather than Xerces-P, but was interested to know if anyone else either 
had the same problems, or was successfully using ptkdb with Xerces-P.

All the best,

Bob.