[quote="jcadam, post:1, topic:4065"] Is this designed on purpose? [/quote] Yes, using the `COMPONENTS` keyword when finding catkin to enumerate additional packages has several drawbacks and was therefore not provided in `ament_cmake`. To maintain a similar level of convenience as in `catkin` you can call [ament_target_dependencies(...)](https://github.com/ament/ament_cmake/blob/af0789c46d03aabf6ee2cae360bf0487dd8a84d4/ament_cmake_target_dependencies/cmake/ament_target_dependencies.cmake#L31) after finding all packages separately. The function will do the "heavy lifting" for you and "use" all common variables from the package names you pass for the passed target name. [quote="jcadam, post:1, topic:4065"] An ament package could be compiled by ament.py with build_pkg parameter. It seems that the python script actually doesnt check whether its dependencies are built. It this what could be expected? [/quote] It does exactly what you described - it builds only the single one package. It does *not* build any other packages. You should use `build` for that. `build_pkg` should commonIy not be used by users. [quote="jcadam, post:3, topic:4065"] Is there a tool in ament like rosdep ? [/quote] ROS 2 uses `rosdep` the same as ROS 1 does. --- [Visit Topic](https://discourse.ros.org/t/questions-on-ament-ament-py-ament-cmake-and-dependency-resolvers/4065/4) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: