In the tutorial, the RTAB-map does not work. I received this warning. However, after double-checking with rostopic info, it appears that one topic is not publishing, which is /camera/depth/image raw/compressedDepth; do you have any clue why?
/rtabmap/rtabmap: Did not receive data since 5 seconds! Make sure the inputtopics are published ("$ rostopic hz my_topic") and the timestamps in their header are set. If topics are coming from different computers, make sure the clocks of the computers are synchronized (“ntpdate”). If topics are not published at the same rate, you could increase “queue_size” parameter (current=10).
/rtabmap/rtabmap subscribed to (approx sync):