[turtlebot3_robot.launch] is neither a launch file in package [turtlebot3_bringup] nor is [turtlebot3_bringup] a launch file name

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Hi all,

I have a TurtleBot3 Burger and it worked perfectly well. Now I switched from one network to another, change the bashrc file with the correct IP adresses, sourced the file and now I cannot run the launch file.

I've build the environment on the Turtlebot and on the Remote PC.

Could you please advise me what are the steps I need to take every time I want to work with the TurtleBot.

This is the error:

pi@R3-D3:~/catkin_ws $ roslaunch turtlebot3_bringup turtlebot3_robot.launch
[turtlebot3_robot.launch] is neither a launch file in package [turtlebot3_bringup] nor is [turtlebot3_bringup] a launch file name
The traceback for the exception was written to the log file