Hi,
I was following the ros tutorial on how to use urdf in gazebo with ros:
http://wiki.ros.org/urdf/Tutorials/Using%20a%20URDF%20in%20Gazebo
However, when I start roslaunch urdf_sim_tutorial 09-joints.launch as described in the tutorial I get this message:
rostopic echo /joint_states
WARNING: no messages received and simulated time is active.
I have Ubuntu 16.4 and ros kinetik.
Do you have any Idea, what causes this problem?
I really can't figure it out. Thank you so much in advance!
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