This is not terribly important and this post is meant to bring awareness.
When launching the simulation in the ROS Navigation rosject, the given commands are:
source ~/simulation_ws/install/setup.bash
ros2 launch turtlebot3_gazebo main_turtlebot3_lab.launch.xml
The source command returns this error.
user:~$ source ~/simulation_ws/install/setup.bash
not found: "/home/user/simulation_ws/install/turtlebot3_node/share/turtlebot3_node/local_setup.bash"
This error does not prevent the simulation from launching or running correctly. I thought I’d inform y’all about it.