Exercise 5.3 Rviz not looking as expected

[PhongNguyen]

I copy the code as guidance for Exercise 5.3 and run:

• Shell #1
  cd ~/ros2_ws
  colcon build --packages-select path_planner_server
  source ~/ros2_ws/install/setup.bash
  ros2 launch path_planner_server pathplanner.launch.py

• Shell #2
  source ~/ros2_ws/install/setup.bash
  source /home/simulations/ros2_sims_ws/install/setup.bash
  rviz2 -d /home/user/ros2_ws/src/local_costmap_rviz_config.rviz

my Rviz looks like this:

while it supposed to look like this:

[PhongNguyen]

One of the map should be subscribe to “/local_costmap/costmap” topic.
Sorry, I have just notice this.