errors when starting openldap 2.3

[Omar Al-Tabari <otabari@batelco.jo>]

Hi,
I'm trying to run v2.3 on my fedora box, when i added the 
"inetorgperson.schema" and the "cosine.schema" to the slapd.conf this is 
the error i got:

redLanguage $   userSMIMECertificate $ userPKCS12 ) ))
/usr/openldap/etc/openldap/schema/inetorgperson.schema: line 155: 
AttributeType not found: "audio"
/usr/openldap/etc/openldap/schema/inetorgperson.schema: line 155: 
handler for <objectclass> exited with 1!
/usr/openldap/etc/openldap/slapd.conf: line 6: handler for <include> 
exited with 1!
slapd destroy: freeing system resources.
slapd stopped.
connections_destroy: nothing to destroy.

with only the basic "core.schema" that is included it works perfectly fine.
does anyone know why this is happening??
thanks.