[quote="marguedas, post:2, topic:2759"] ros2 topic echo /joint_states sensor_msgs/JointState [/quote] Hi @marguedas, Everything works now. Thanks. However please let me know how to get rid of the warning i am receiving as mentioned in [here](https://discourse.ros.org/t/failed-to-read-request-type-from-a-header-for-rostopic/2759/9?u=arunava_nag) , So, does it imply that i can only read or echo on ros2 side, when i do rostopic pub? You dont need a UR, I just tried with its gazebo simulation as [here](http://wiki.ros.org/ur_gazebo), it streams out the topic /joint_states when I launch the ur10.launch file, however establishing the ros_bridge I still couldn't hear those messages in ros2 end. --- [Visit Topic](https://discourse.ros.org/t/failed-to-read-request-type-from-a-header-for-rostopic/2759/10) 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: