Fantastic, and welcome!
ENSIME is not an IDE, it is just one tool in a toolbox. You must also have:
.ensimefile describing your project layout. To generate this file, see our list of build tool plugins.
If things don’t work as you expected, please read the Getting Help guide before asking for help.
You are invited to read our Contributing Guide and improve ENSIME. You’ll get lots of help from existing contributors. Please take a moment to read The Open Source Entitlement Complex to understand why we empower, but our contributors do not provide customer support.
Whether or not you can help with direct contributions, please consider sponsoring a developer.