This is an error report.
Screenshot of the error
Exercise 2.3: I tried to configure the map display according to the screenshot in course notebook, but it still says "No map received"
If I do: ros2 topic echo /map I do get something back, and the header looks correct.
Hello did you have choosen correctly reliability and durability policy?
This is the reliability and durability policy I have, I tried to use the same as shown in course notebook.
Ok, since you have the correct QoS settings, what you can do is:
- Confirm that the
map_server ran correctly and provided the map (I assume it did because you metion you are able to echo
- Uncheck/check the actual “Map” element in
rviz2. Since the map server only publishes once, sometimes
rviz2 might not catch it.
- Restart the map server with
Thanks a lot for the hints!
Starting rviz before map_server solved the problem.
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