Newbie: can't populate LDAP database

["Alexei Monastyrnyi" <alexeim@orcsoftware.com>]

Hi All.
I've just installed OpenLDAP 2.1.16 on Solaris 9 box.
Edited slapd.conf and started daemon.
Launching the command ldapsearch I can see lines
er:updater# ldapsearch -x -b '' -s base '(objectclass=*)' namingContexts
# extended LDIF
#
# LDAPv3
# base <> with scope base
# filter: (objectclass=*)
# requesting: namingContexts
#

#
dn:
namingContexts: dc=orcsoftware,dc=com

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1

which, I guess, means that slapd is up and running.

Trying to add entry in LDAP database with ldapadd command I can see lines
er:updater# ldapadd -x -D "cn=Manager,dc=orcsoftware,dc=com" -W -f
test2.ldif
Enter LDAP Password:
adding new entry "cn=Barbara J Jensen,dc=orcsoftware,dc=com"
ldapadd: update failed: cn=Barbara J Jensen,dc=orcsoftware,dc=com
ldap_add: No such object (32)

er:updater# cat test2.ldif
dn: cn=Barbara J Jensen,dc=orcsoftware,dc=com
cn: Barbara J Jensen
cn: Babs Jensen
objectClass: person
sn: Jensen

Have different error codes with more complex entry, like this
er:updater# ldapadd -x -D "cn=Manager,dc=orcsoftware,dc=com" -W -f erik
Enter LDAP Password:
adding new entry "uid=erik,ou=People,dc=orcsoftware,dc=com"
ldapadd: update failed: uid=erik,ou=People,dc=orcsoftware,dc=com
ldap_add: Object class violation (65)
        additional info: invalid structural object class chain
(inetOrgPerson/ac
count)

er:updater# cat erik
dn: uid=erik,ou=People,dc=orcsoftware,dc=com
uid: erik
cn: erik heimdahl
givenName: erik
sn: heimdahl
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
objectClass: account
objectClass: posixAccount
objectClass: top
userPassword: {crypt}XXX
loginShell: /bin/tcsh
uidNumber: 100
gidNumber: 410
homeDirectory: /home/erik
gecos: erik heimdahl

My slapd.conf file looks like this
er:updater# cat /usr/local/etc/openldap/slapd.conf
# $OpenLDAP: pkg/ldap/servers/slapd/slapd.conf,v 1.23.2.6 2003/02/26
15:17:50 ku
rt Exp $
#
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
include         /usr/local/etc/openldap/schema/core.schema
include         /usr/local/etc/openldap/schema/cosine.schema
include         /usr/local/etc/openldap/schema/inetorgperson.schema
include         /usr/local/etc/openldap/schema/nis.schema

# Define global ACLs to disable default read access.

# Do not enable referrals until AFTER you have a working directory
# service AND an understanding of referrals.
#referral       ldap://root.openldap.org

pidfile         /usr/local/var/slapd.pid
argsfile        /usr/local/var/slapd.args

# Load dynamic backend modules:
# modulepath    /usr/local/libexec/openldap
# moduleload    back_bdb.la
# moduleload    back_ldap.la
# moduleload    back_ldbm.la
# moduleload    back_passwd.la
# moduleload    back_shell.la

# Sample security restrictions
#
#   Disallow clear text exchange of passwords
# disallow bind_simple_unprotected
#
#       Require integrity protection (prevent hijacking)
#       Require 112-bit (3DES or better) encryption for updates
#       Require 63-bit encryption for simple bind
# security ssf=1 update_ssf=112 simple_bind=64

# Sample access control policy:
#       Root DSE: allow anyone to read it
#       Subschema (sub)entry DSE: allow anyone to read it
#       Other DSEs:
#               Allow self write access
#               Allow authenticated users read access
#               Allow anonymous users to authenticate
#       Directives needed to implement policy:
# access to dn.base="" by * read
# access to dn.base="cn=Subschema" by * read
# access to *
#       by self write
#       by users read
#       by anonymous auth
#
# if no access controls are present, the default policy is:
#       Allow read by all
#
# rootdn can always write!

#######################################################################
# ldbm database definitions
#######################################################################

database        bdb
suffix          "dc=orcsoftware,dc=com"
rootdn          "cn=Manager,dc=orcsoftware,dc=com"
# Cleartext passwords, especially for the rootdn, should
# be avoid.  See slappasswd(8) and slapd.conf(5) for details.
# Use of strong authentication encouraged.
rootpw          secret
# The database directory MUST exist prior to running slapd AND
# should only be accessible by the slapd/tools. Mode 700 recommended.
directory       /usr/local/var/openldap-data
# Indices to maintain
index   objectClass     eq

Will be appriciate for any advice.

Alexei.