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turtlebot3_gazebo package not publishing on /scan

I am launching a Gazebo world using roslaunch turtlebot3_gazebo turtlebot3_world.launch. However, when I run the command rostopic echo /scan in the terminal window, I get the following message -

WARNING: no messages received and simulated time is active.
Is /clock being published?

How can I make Gazebo publish to /scan?

Asked by skpro19 on 2020-12-27 03:51:47 UTC

Comments

Did you change any thing on turtlebot repo or it is orginal because if you changed something on urdf maybe you can deleted scan options

Asked by bekirbostanci on 2020-12-27 09:49:30 UTC

I deleted the entire turtlebot3 package, and re-built it from source. Same issue. It is weird because everything was working fine a couple of days ago.

Asked by skpro19 on 2020-12-27 10:10:50 UTC

Firstly you can check tf tree. Also I want to ask one more question. Does your simulation work or it gives some error ?

Asked by bekirbostanci on 2020-12-27 10:18:50 UTC

Answers