Moving from rt2 to rt3 fails

Hello

i have following problem:

dumpin rt2 database works fine from me but when i try
import stuff to new rt3 machine dumpfile-to-3.0 gives following
errors:

[foo@bar data]# ./dumpfile-to-rt-3.0 dump3
Importing users

Importing groups
gggggr[Fri Feb 13 15:36:32 2004] [crit]: 1
(/opt/rt3/lib/RT/ACE_Overlay.pm:884)
[Fri Feb 13 15:36:32 2004] [crit]: Can’t load a principal for id
(/opt/rt3/lib/RT/ACE_Overlay.pm:885)
r[Fri Feb 13 15:36:32 2004] [crit]: 1 (/opt/rt3/lib/RT/ACE_Overlay.pm:884)
[Fri Feb 13 15:36:32 2004] [crit]: Can’t load a principal for id
(/opt/rt3/lib/RT/ACE_Overlay.pm:885)

[Repeat this many many times]

after this it seems to import all the tickets but no users are imported
and tickets arent shown correctly with web GUI but they still
exists in db

i’ve installed latests modules from CPAN to both machines
old one is 7.0 redhat and the new machine is RHEL 3.0

any help would be more than welcome

thanks in advance

regards,
Antti Niittymaa