ROS2 Navigation-Unable to load the occupancy map in RVIZ2

Omniverse Isaac Sim
1

Hello i have followed this example ROS2 Navigation and i am using ros2 humble.
The first time i followed this example i could see the occupancy map loaded in rviz2 automatically while i was running ros2 navigation example is isaac sim but now i am unable to see the occupancy map in rviz2 therefore i can not give 2D pose estimation and Nav2 goal position from rviz2.

I have carefully followed the instruction as the tutorial says. can someone please guide me why i am unable to see occupancy map ?
This is how it looks on rivz2

issue1
issue11126×654 204 KB

Could it be because of fixed frame? when i changed fixed from map to odom i can only see TFs in the center of rviz2 without map though.
Please guide.

3

Hey @saadosamagpt Welcome to our community!

From your screenshot, I can see there is a “global status: error”. Could you please click on it and see what is the error message?

Other things you can try to debug is

  1. check if the map message is available by doing ros2 topic echo /map and see if any message is published
  2. check if the TF tree is properly built. You can do ros2 run tf2_tools view_frames which will save a pdf file of the TF tree. You will need all TFs linked to one tree.
4

I will close this topic since there is no new replies. But please feel free to open a new one if the issue still persists.