Build status unavailabe

Hello:

After two days trying I have installed the OBS Appliance on a local
server, and I got it working perfectly but it doesn’t build packages. I
always get the “Build Status unavailable” message. I check into the
appliance and there is no gcc or any other compiler.

My question is: Do I have to install anything else?
If so, where I can find it ?

sorry for my english. Thanks a lot