Hello Everyone, Currently I'm using ROS in combination with OROCOS. I want to use a the geometry_msgs package so I can send messages of the Vector3 type. However when I try building rtt_geometry it turns out the package rtt_geometry_msgs does not exist. At first I thought it was a problem with the ROS_PACKAGE_PATH but it turns out it is not on my PC at all. I read that the rtt_geometry_msgs package is an autogenerated package that should not be edited manually. What do I have to do to generate this package? The error I get is shown below: [rosbuild] Building package rtt_tf Failed to invoke /opt/ros/groovy/bin/rospack deps-manifests rtt_tf [rospack] Error: package/stack 'rtt_tf' depends on non-existent package 'rtt_geometry_msgs' and rosdep claims that it is not a system dependency. Check the ROS_PACKAGE_PATH or try calling 'rosdep update' Thanks in advance. Regards, Niels