[Ros-release] Debian source build failed -- what to do?

Where can I find any information to help debug this problem? The
pre-release tests worked fine.

> Stack [art_vehicle-0.4.2] in distro [fuerte] failed to build on the following OS platforms:
> ['precise']

> [precise]: stack [art_vehicle] does not have valid debian package dependencies for release [precise]

--
 joq