RRT does not work

[tiara567]

Hi, Sir. I have followed your instructions. So far so good until i run the following code:

roslaunch ros_autonomous_slam autonomous_explorer.launch

The rviz window already opened and the publish points is set. However, the RRT does not show up. In terminal terminal there is an error "ERROR: cannot launch node of type [ros_autonomous_slam/global_rrt_detector]: Cannot locate node of type [global_rrt_detector] in package [ros_autonomous_slam]. Make sure file exists in package path and permission is set to executable (chmod +x) ERROR: cannot launch node of type [ros_autonomous_slam/local_rrt_detector]: Cannot locate node of type [local_rrt_detector] in package [ros_autonomous_slam]. Make sure file exists in package path and permission is set to executable (chmod +x)"

Please give me some insight, Sir