problem when migration

[Dunk Chen <dunk@the98.net>]

Dear all:
I have encountered a problem when I migrated my local account.
I use migration tools from www.padl.com.
When the bash script "migrate_all_offline.sh" executed.
It response the error msg "unrecognized objectClass: domain".

I check the ldif file generated by migration scripts tools, I found
that the error may arised when the import process meet at this line
dn: "dc=xxxx, dc=net".

And I can't see any "objectClass: domain" declaration in those schema
files in that schema/ directory.

What should I do?