ldap on etch

["n r" <ynr59@hotmail.com>]

Hello,

I have Debian Etch, slapd 2.3.24. I try to add a ldap user with a ldif  
file, but I have this message:

adding new entry "uid=martin,ou=People,dc=lorraine,dc=u-strasbg,dc=fr"
ldap_add: Internal (implementation specific) error (80)
       additional info: no structuralObjectClass operational attribute

my ldif file is:

dn:uid=martin,ou=People,dc=lorraine,dc=u-strasbg,dc=fr
changetype:add
uid:martin
cn: Martin TEST
sn: Martin
givenName:Test
objectClass:top
objectClass:person
objectClass:inetOrgPerson
objectClass:posixAccount
objectClass:account
objectClass:mailAlias
loginShell:/bin/false
uidNumber:1051
gidNumber:1001
homeDirectory:/home/imavil/martin
gecos:TEST Martin
mail:martin.test@lorraine.u-strasbg.fr
mailAliasedName:martin@lorraine.u-strasbg.fr
userPassword:martin
telephoneNumber:04.22.23.00.01

If  I delete the line 'objectClass: account', the user is added ???
In my slapd.conf, I have:
include         /etc/ldap/schema/core.schema
include         /etc/ldap/schema/cosine.schema
include         /etc/ldap/schema/nis.schema
include         /etc/ldap/schema/inetorgperson.schema
include         /etc/ldap/schema/mailrouter.schema

need help, thanks.
nr