Can you please help me exercise 3.2

[usmanmehmood55]

`![solution|690x362](upload://i1r1cMQz0oQHkVeKOxF8sT7umXk.jpeg) `

I think issue is with launch file

This is the error I am facing

I would be grateful if someone can help

[simon.steinmann91]

what are you trying to do?