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?