kelejichi6463 commented 1 month ago

Important!!!

[✔] I have checked that this issue/bug/fix/correction has not been already created before in open or closed issues.

Type of bug

[ ] A) Typo/error in Figure/text
[ ✔] B) Bug in code
[ ] C) General comment, recommendation or petition

Issue Description

There are three examples in Chapter 6. The last example cannot be run. Execute: ros2 launch br2_tiago sim.launch.py is_public_sim:=True ros2 launch br2_navigation tiago_navigation.launch.py rviz2 --ros-args -p use_sim_time:=true ros2 launch br2_bt_patrolling patrolling.launch.py See error: But RViz failed to display the expected map information and prompted an error: "Global Status: Error"

Screenshots

Desktop (please complete the following information):

OS:Ubuntu 22.04
ROS2 Humble

Additional context

Add any other context about the problem here.

fmrico commented 1 month ago

Hi @kelejichi6463

The book was published two years ago, and its target distribution is Foxy (Ubuntu 20.04), which has an End of Life date of June 20th, 2023. However, I have been updating the source code to Humble (Ubuntu 22.04) and recently to Jazzy (Ubuntu 24.04). Additionally, the repositories where the simulator is supported (managed by PAL Robotics) have evolved without my control, causing problems.

I am preparing the second edition of the book, in which I will fork the PAL repositories to have more control and to prevent similar problems in the future. This new edition will be ready in a couple of months, and I will ensure that all the projects are compatible with Jazzy and the new Gazebo simulator. I appreciate your patience, and I recommend trying it on Jazzy once it's ready. Additionally, I am considering preserving the versions of the first edition and placing them in a docker to ensure that everything works correctly.

Best