No laser scan received (and thus no pose updates have been published) for 18.974000 seconds. Verify that data is being published on the /scan topic.
Hi all, i already searched this question on all over answers.ros.org, but i didnt found answer on the issue i have. I built a custom 4 wheel bot and i added a navigation stack(map, move_base, amcl and other param yaml files) on it. if i run the launch file, i get this error,
[ WARN] [1656224367.752167333, 18.974000000]: No laser scan received (and thus no pose updates have been published) for 18.974000 seconds. Verify that data is being published on the /scan topic.
so, the issue i have is even if i see the map in rviz, there are no particle filters i can see detected by laser.Which describes the error i mentioned above. i clearly understand that my bot doesnt localize at first, leads to cant set a navigate and set a goal to my bot on the map.
I have been trying to solve this issue since last 3 days. Would be glad to have some guidance. Thanks in advance.
Regards.
You'd better provide the result when executing
roswtf, and the tf tree in rqt. It is easier for others to debugthank u for ur reply Sure, i attached a link of drive here, which has all the image files(error) in it...for your reference.
link text
i named those files with respect to the errors...
thanks in advance.
any output from the /scan topic using rostopic echo?