@arunava_nag can you confirm that the example [provided above](https://discourse.ros.org/t/failed-to-read-request-type-from-a-header-for-rostopic/2759/2) using only `rostopic pub` on the ROS1 side and `ros2 topic echo` on the ROS 2 side works for you ? As mentioned in the previous post a reproducible example without relying on having a UR10 available would help us investigate the issue. Thanks! --- [Visit Topic](https://discourse.ros.org/t/failed-to-read-request-type-from-a-header-for-rostopic/2759/6) 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: