I tried a fresh build in a container yesterday evening and could not reproduce this issue. Just to clarify, did you try to remove your build folder before recompiling ? Do you have the exact same error after your fresh checkout ? If you run `vcs status --hide` in your source directory, do you have any outstanding changes on this packages or its dependencies? --- [Visit Topic](https://discourse.ros.org/t/building-ros2-master-on-ubuntu-16-fails/1881/5) 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: