I suspect that your bridge has only been built with minimal message support (you can verify this with the `--print-pairs` option as suggested). It needs to be built in a particular way to get tf2_msgs and nav_msgs etc support. Please either switch to using the bridge from binaries, or follow these instructions to build the bridge from source: https://github.com/ros2/ros1_bridge/blob/master/README.md#build-the-bridge-from-source This is mentioned in the demo instructions but I'll update it to highlight that this step requires particular attention. --- [Visit Topic](https://discourse.ros.org/t/cartographer-and-navigation-workable-in-beta2/2074/8) 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: