[389-users] Error while trying to add Object -> unknown object class "olcSchemaConfig"

Hi I am trying to use LDAP service which is installed in the IPA server to authenticate Guacamole users. Guacamole and LDAP integration specifies that i need to create an additional object called guacConfigGroup.

To accomplish that, i have downloaded the supplied ldif file from https://guacamole.apache.org/doc/1.2.0/gug/ldap-auth.html and executed ldapadd utility command with the following ldif file:

Command ========

# ldapadd -h idm.mydomain.net -p 389 -x -D "cn=Directory Manager" -w 'secret' -f guacConfigGroup.ldif

guacConfigGroup.ldif ================

dn: cn=guacConfigGroup,cn=schema,cn=config objectClass: olcSchemaConfig cn: guacConfigGroup olcAttributeTypes: {0}( 1.3.6.1.4.1.38971.1.1.1 NAME 'guacConfigProtocol' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) olcAttributeTypes: {1}( 1.3.6.1.4.1.38971.1.1.2 NAME 'guacConfigParameter' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) olcObjectClasses: {0}( 1.3.6.1.4.1.38971.1.2.1 NAME 'guacConfigGroup' DESC 'Guacamole configuration group' SUP groupOfNames MUST guacConfigProtocol MAY guacConfigParameter )

However, i am getting the following error while trying to add guacConfigGroup object

adding new entry "cn=guacConfigGroup,cn=schema,cn=config" ldap_add: Object class violation (65) additional info: unknown object class "olcSchemaConfig"

Any insights will be highly appreciated !

Regards