I am trying to execute launch file for Ex 2.2 but getting this error.
Did you create the package?
Have you compiled and sourced it?
cd ~/catkin_ws catkin_make source devel/setup.bash rospack profile
PS: This course assumes you have a knowledge of ROS Basics.
No I did not compile and sourced as that step was not mentioned in the instructions. Thanks for that…will work on ROS basics first.