Hi Ken, > The pre-release system is now up on Fuerte so you should be able to > verify a working build before releasing. Thanks, I've first thought the problem was that I did not update the rosdep.yaml to REP111's format, but even after having done so, the compilation still fails with: asebaros: Cannot locate rosdep definition for [serial_port] I do not understand this error message, as rosdep.yaml in the stack's top level directory contains: serial_port: ubuntu: apt: libhal-dev debian: apt: libhal-dev which should be correct. Do you have any idea about this error? Thank you, kind regards, Stéphane -- Dr Stéphane Magnenat http://stephane.magnenat.net