On Wed, May 9, 2012 at 8:14 PM, Wes Thierry wrote: > I am new to ROS, but slowly catching on.  I downloaded a package and ran > rosmake, I got a dependency error like the following. > > [rosbuild] Building package pi_head_tracking_tutorial >   Failed to invoke /opt/ros/fuerte/bin/rospack deps-manifests > pi_head_tracking_tutorial >   [rospack] Error: package/stack pi_head_tracking_tutorial depends on > non-existent package uvc_cam > > >   CMake Error at /opt/ros/fuerte/share/ros/core/rosbuild/public.cmake:129 > (message): > > > I then download and run rosmake on uvc_cam2, which builds fine.  I download > and build uvc_cam2 in the ros_workspace directory, however after building I > still get the error.  after building a package, is there something to do in > order to get ROS to recognize it? We have answers.ros.org for questions like this. --  joq