Hello whenever i try to run this command: source ~/simulation_ws/install/setup.bash
ros2 launch turtlebot3_gazebo main_turtlebot3_lab.launch.xml
it gives me this error in the terminal and i am unable to start working on the final project because of that.
@mariamessam521cs
I just ran this two commands and they worked as expected.
Are you connected to the robot? If so, these commands will not work.
Thank you so much for replying. Unfortunately I did not understand the instructions that clearly in the textbook, So I would appreciate it so much if you could clarify to me how I can connect to the bot 
.
I mean that if you are connected to the robot, the simulation command will not work.
You can find instructions for connecting to the robot in the later parts of the notebook. Just follow the notebook step by step.
Okay yes it works now. Thank you so much for your help.
1 Like
This topic was automatically closed 5 days after the last reply. New replies are no longer allowed.