Unknown attribute "Acct-Unique-Session-Id"

[Jev]

Hi all,
I'm getting the error:
Unknown attribute "Acct-Unique-Session-Id"
When receiving radius accounting packages.
It I understand correctly the Acct-Unique-Session-Id is created by 
radius internally from the parameters specified for the acct_unique module.

I changed the key value for the acct_unique so that it is composed only 
have values that exist in my radius acc messages, but I still get this 
error.

I also have acct_unique to me preacct module:
  preacct {
    preprocess
    acct_unique
.
.
}
Can someone give me a pointer as to what I'm missing here?
# radiusd -v
radiusd: FreeRADIUS Version 1.0.1, for host , built on Nov 20 2004 at 
10:49:52

Thanks,
-Jev
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