is neither a launch file in package [cartographer_ros] nor is [cartographer_ros] a launch file name

$ Rospack profile to see those

Using $ source ~ / catkin_ws / devel / setup.bash loaded into

Use $ echo "source ~ / catkin_ws / devel / setup.bash" >> ~ / .bashrc new window can also be used

See: https: //blog.csdn.net/u010811078/article/details/59482473