[Users] avp_printf error

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello! I am trying to use AVP operation and I experiment some problems. I have a line in my configuration like this: avp_printf("i:45","$dd"); When I restart my OpenSER server, I got this error: /usr/sbin/openser[8023]: xl_parse_item: error - bad parameters /usr/sbin/openser[8023]: ERROR:avpops:fixup_printf_avp: unable to get pseudo-variable in param /usr/sbin/openser[8023]: ERROR: fix_actions: fixing failed (code=-2) at cfg line 240 And the line 240 is the line where I call the avp_prinf() function. I tried with others pseudo-variables but whatever the variable is, I get always the same problem. I am using openser-1.1.0-tls with debian package. Does someone have some help for me? Thanks Greg