HHN

Same problem here. Ubuntu 16.04 and ros kinectic 1.12.14

Thank you for your reply @koide3. Updating Python and OpenCV3 worked for me. Still get the error with my old WS, creating a new one after the updates solved the...

I guess that's an error when you don't execute "set use_sim_time true" before starting the launch file.

Have you also started the bagfile with the clock setting, like "rosbag play --clock /home/your/path/*.bag"?