user:~/catkin_ws/src/robot_control$ rostopic list
/clock
/cooper_1/cmd_vel
/cooper_1/joint_states
/cooper_1/robot_action
/rosout
/rosout_agg
/tf
/tf_static
Error appearing for this course. I checked the ros topics. it seems /cooper_1/scan isn’t in the list, so we’re publishing to the wrong topic in code I copy pasted. Any fixes?
Issue fixed. Instead of deleting post, I’ll share the fix here:
Simply reload until the robot properly connects. I didn’t notice prior to my posting the question, but when the connection with simulation has not been established properly, the text in the simulator will be red instead of green. patiently wait and keep refreshing until it turns green. took around 5 to 10 minuntes. that’s all.
@mfarae
Thanks for the tips!
You should not need to refresh, though, and the dots should turn green really fast. Is it possible that something was throttling or slowing down certain aspects of your connection (especially WebSocket? Perhaps a firewall or internet security software?
