#1 Unable to view old contacts or create new ones

[Anonymous]

I'm having some difficulty with viewing and
editing entries in Jabook.
When I sign in, I am able to see the base DN that I
specified, and the
listing for teh sub-entries; however, when I click on
the sub-entries, all
the fields are grayed out and I can't see any
information. Furthermore, when
I go to add a new contact, I get this error message
in the log:
---
2006-08-21 16:57:55,508 [Thread-10] DEBUG jabook -
Creating
cn=Test,ou=Contacts,dc=example,dc=com
2006-08-21 16:57:55,521 [Thread-10] ERROR jabook -
LDAPException: Invalid
Attribute Syntax (21) Invalid Attribute Syntax
LDAPException: Server Message: objectClass: value #0
invalid per syntax
LDAPException: Matched DN:
2006-08-21 16:57:55,523 [Thread-10] ERROR jabook -
jabook.datasource.DataSourceException: LDAPException:
Invalid Attribute
Syntax (21) Invalid Attribute Syntax
LDAPException: Server Message: objectClass: value #0
invalid per syntax
LDAPException: Matched DN:
---
Oddly enough, I can still create and delete
sub-directories. I am using
OpenLDAP 2.3.24 on Debian Linux (server side); I
tried both the Windows and
Linux Jabook clients and got the same error message.
The access line in
slapd.conf is as follows:
---
access to dn.subtree="ou=Contacts,dc=example,dc=com"
by dn="cn=admin,dc=example,dc=com" write
by dn="cn=Clark Peter,ou=Staff,dc=example,dc=com"
write
by * none
---
Accessing LDAP via something like phpldapadmin
works fine: I am able to
view and create sub-entries.
I have the same problem, even if I log in as
admin.

[Nobody/Anonymous]

Logged In: NO

Addendum: I downloaded the schema from this site, rather
than use the (semi) official Thunderbird schema
(mozillaAddressBookEntry.schema available at
https://bugzilla.mozilla.org/show_bug.cgi?id=116692\), and
now everything works.