I noticed you were using the Homebrew installed packages in the screenshot, so I tried on my daughter’s iMac which had nothing installed previously and is running Catalina. Did a fresh install of Homebrew, Erlang and Elixir and the latest version of RM. I had zero issues. Did you happen to ever set up Elixir via any other method (like ASDF, etc.)? Perhaps the Homebrew one is not active?
Deleting the .idea folder may help. I’ve had issues in the past trying to share an Elixir project with IntelliJ CE and RM. The .iml files are slightly different and it would screw up the second IDE you tried.
I did play around with VSCode today a little. Takes a lot of set up/plugins to get what comes natively with RM and IntelliJ Elixir…still missing a few things like the nice test runner, but it works. Im still partial to the JetBrains IDE’s though, maybe just familiarity.
If you are still interested in getting it going, file an issue with @KronicDeth on the plugin GitHub. He’s been super helpful when I’ve been stuck or had issues.
