On Wed, Dec 1, 2010 at 2:49 AM, saâdia dhouib wrote: > The following packages have unmet dependencies: >  ros-cturtle-base : Depends: ros-cturtle-point-cloud-perception (= > 0.3.2.2-r6361~lucid) but it is not going to be installed > E: Broken packages Is your machine is configured to use the 'maverick' repository instead of the lucid repository? [1] - Ken [1]: http://www.ros.org/wiki/cturtle/Installation/Ubuntu