If anyone runs into this I've answered this question at: https://answers.ros.org/question/300874/how-do-you-use-callbackgroups-as-a-replacement-for-callbackqueues-in-ros2/?answer=301165#post-id-301165 --- [Visit Topic](https://discourse.ros.org/t/ros2-package-migration-replacement-for-callbackqueueinterface/5751/2) 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: