Hiya, I have a question about the launch file included in the solution to 4.2. I managed to make my own subscriber that ran the Odometry data with no issue, but I never made a launch file. I wanted to know why they created a launch file, since I just ran the subscriber with rosrun. Thanks.
Launch files are introduced because when you need to launch several rosrun nodes in one go, launch files are vital way of doing it.
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