topic 4 has me create a package, that fine and diddy but every time I try to launch pkg with launch file I get this error:
Package ‘topic_publisher_pkg’ not found: “package ‘topic_publisher_pkg’ not found, searching: [’/opt/ros/foxy’]”
This is weird because I sourced the source ~/catkin_ws/devel/setup.bash and everything, yet still it doesn’t see the package.
Does anyone know how to deal with this sort of problem?