def main(): rclpy.init() pub_demo = Topic_Pub(“publisher_node”) rclpy.spin(pub_demo) pub_demo.destroy_node() rclpy.shutdown() If the destroy_node() function is not used, will executing rclpy.shutdown() reclaim and destroy the related nodes? I’m not quite sure how to monitor whether a node has been destroyed.If possible, please also let me know how to monitor whether a node has been destroyed, Thanks. ros2

I’m running ROS 2 Humble on a VirtualBox Ubuntu 22.04 machine. Whenever I run a ros node (like the one in the ROS2 Tutorial and try to end it using Ctrl+C, the node spits out an error and then closes.
my_node

I am trying to subscribe to two topics from radar and lidar using message_filters, the code is working but the callback is not running, just wait! my code as next:

What is the intended way of sending an object of type bytes in a Python ROS2 node?

I’m trying to install the ROS 2 control library (ros2_control) for the Humble distribution on my Ubuntu system. However, when I use the command sudo apt-get install ros-humble-ros2-controller, I get the following error:

I am developing multiple ros2 packages that depend on each other. I use a rosdep repository and a debian repository to install dependencies via