LiveBook Can't Connect After Upgrade

After LiveBook minor version upgrade, can’t connect to node

There was a “small” change in the recent LiveBook project which may prevent LiveBook from connecting to other nodes.

LiveBook Changelog

To make your node visible to LiveBook now, you must use long names.

Now when starting iex, use ✅ --name instead of ❌ --sname.

Then in the LiveBook config, specify the full node name such as myproject@mymac.local (for local Mac users).