DKIM error: Milter service needs transport

[stimpack]

when i check my logs i find this errors related to my dkim problems

Mar  6 23:56:46 mail postfix/cleanup[5701]: warning: Milter service needs transport:endpoint instead of "inet:"
Mar  6 23:56:46 mail postfix/cleanup[5701]: warning: Milter service needs transport:endpoint instead of "localhost:"
Mar  6 23:56:46 mail postfix/cleanup[5701]: warning: Milter service needs transport:endpoint instead of "9999"

i added theses lines to postfix main.cf

milter_default_action = accept 
milter_protocol = 2 
smtpd_milters = inet: localhost: 9999 
non_smtpd_milters = inet: localhost: 9999

im stuck at this point plz i need advice