I'm following a walkthrough that guides you through setting up node on an ubuntu machine. I'm at the step where you configure the system to allow node to run on port 80. It (as well as a few other guides I've looked at) recommend running the following command:
sudo setcap cap_net_bind_service=+ep /usr/local/bin/node
This returns the following error:
Failed to set capabilities on file `/usr/local/bin/node' (Invalid argument) The value of the capability argument is not permitted for a file. Or the file is not a regular (non-symlink) file
Any idea what may cause this error?