failed to open image in ROS Kinetic

Question

hello, i have run this "roslaunch turtlebot3_navigation turtlebot3_navigation.launch" in ROS Kinetic but its turn out "failed to open image file" image description here

I'm expecting to display the map

Answer 1

This is happening because the correct path to the map.pgm file is not being passed to ROS. I can see the problem with the path happening in the map.yaml file.

Navigate to turtlebot3 -> turtlebot3_navigation -> maps -> map.yaml and change the first line from image: ./map.pgm to image: map.pgm.

This should allow for the map image to be loaded correctly.