to add to what the others have said, in order to use the rmw_connext_cpp implementation, you will have to ensure that that package itself has been built. the binaries only provide support for rmw_fastrtps_cpp, but you can get Connext support if you are building from source. This page gives some more information about switching RMW implementations: https://github.com/ros2/ros2/wiki/Working-with-multiple-RMW-implementations --- [Visit Topic](https://discourse.ros.org/t/python-binding-to-connext-vs-frtps/1207/7) 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: