Installation FAQ

Q: How to address the "Your hostname does not resolve to a loopback address" message?

macOS

This may be caused by a faulty hostname configuration. You can verify if that's the case with:

$ scutil --get HostName

If it prints "HostName: not set", then the issue is confirmed. To address this, you can set the Hostname to _ and let macOS fill it in for you:

$ sudo scutil --set HostName _

Prompt your password and you should be good to go.

All Operating Systems

If you are using Livebook from the command line, you may also pass the --name [email protected] option.