this is the whole error
linux-5r4o:~ # /usr/sbin/smbldap-populate
(S-1-5-21-1340639749-3944180587-383553904).edu
(using builtin directory structure)
entry dc=chivpr,dc=edu already exist.
entry ou=Users,dc=chivpr,dc=edu already exist.
entry ou=Groups,dc=chivpr,dc=edu already exist.
entry ou=Computers,dc=chivpr,dc=edu already exist.
entry ou=Idmap,dc=chivpr,dc=edu already exist.
entry uid=root,ou=Users,dc=chivpr,dc=edu already exist.
entry uid=nobody,ou=Users,dc=chivpr,dc=edu already exist.
entry cn=Domain Admins,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Domain Users,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Domain Guests,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Domain Computers,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Administrators,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Account Operators,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Print Operators,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Backup Operators,ou=Groups,dc=chivpr,dc=edu already exist.
entry cn=Replicators,ou=Groups,dc=chivpr,dc=edu already exist.
entry sambaDomainName=chivpr.edu,dc=chivpr,dc=edu already exist. Updating it…
failed to modify entry: structural object class modification from ‘sambaDomain’ to ‘inetOrgPerson’ not allowed at /usr/sbin/smbldap-populate line 464, <GEN1> line 21.