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Copy the contents of tutorial.launch into your own launch file calling it whatever you want and then save it. You should not be trying to edit the contents of other packages (like I said in the question that you deleted). That error is arising because you're trying to edit the contents of an installed package.

Copy the contents of tutorial.launch into your own launch file calling it whatever you want and then save it. it ina package that you created.

You should not be trying to edit the contents of other packages (like I said in the question that you deleted). That error is arising because you're trying to edit the contents of an installed package.

Copy the contents of tutorial.launch into your own launch file calling it whatever you want and then save it ina package that you created.

You should not be trying to edit the contents of other packages (like I said in the question that you deleted). packages. That error is arising because you're trying to edit the contents of an installed package.

Copy the contents of tutorial.launch into your own launch file calling it whatever you want and then save it ina in a package that you created.

You should not be trying to edit the contents of other packages. That error is arising because you're trying to edit the contents of an installed package.