agent don't send debian 7 software inventory

Dear community,

I'm running OCS Inventory server 2.5 and agent 2.4.2.

Despite all required and recommended packages are installed, on Debian 7, the agent doesn't send any detail about the installed software to the server.

Enabling debug mode there's not <SOFTWARE> section in the log.

dpkg if of course installed.

Any hint?

Kind regards,

Gabriele