no transform from base_footprint to map

asked 2020-09-09 04:44:42 -0500

lslabon gravatar image

updated 2020-09-09 04:47:45 -0500

Hey guys,

I've already read through several threads but none of them could help me, so I am trying it here.. I am setting up my turtlebot3 waffle_pi and simulating it with the tutorial https://emanual.robotis.com/docs/en/p... (I am at 11. 2.1.5) (I am using ros melodic with Ubuntu 18)

When launching "roslaunch turtlebot3_navigation turtlebot3_navigation.launch map_file:=$HOME/map.yaml" i get several warnings:

(1) [ WARN] : Request for map failed; trying again...

[ WARN] Timed out waiting for transform from base_footprint to map to become available before running costmap, tf error: canTransform: target_frame map does not exist.. canTransform returned after 0.1 timeout was 0.1. ...

(2) ...

I am asking for a solution for Warning (1) - (in rviz everything is launching but not at the right "place"...) For (2) there is an tutorials at ros which might help me. Anyway, I don't think this is the problem why my map is wrong... which is why I am trying to solve Warning (1)

Besides, I am a rookie in ros/ programming in general. Please tell me exactly what to do... Maybe I won't get it otherwise

rosrun tf view_frames: map->odom->base_footprint->base_link...

rosnode list: /amcl /gazebo /gazebo_gui /map_server /move_base /robot_state_publisher /rosout /rviz

Thank you for your help!

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