map doesn't work

[Marouan-22]

Hi,

I use rplidar A1 to scan, i do get the laser but it doesn't show anything if I set it on map? do you have any idea?

greetings!

[Kathan-k10]

same problem , any solution or other way to work on SLAM?

[ch1y1z1]

same problem , any solution or other way to work on SLAM?

[anasderkaoui]

Make sure you have the right transform tree in the lidar code. The error message on the terminal indicates that the issue is likely related to the transform tree which should look like this (if you run: ros2 run tf2_tools view_frames.py): odom -> base_link -> laser In some cases the message might also indicate that the queue size is full, so it has to be modified in the code to be larger.