IntelliJ installation and setup

IntelliJ now seems to be the most popular IDE for Scala.

Installation

To get started with IntelliJ, Scala and SBT, follow the official Scala getting started guide

Always import SBT project into IntelliJ as SBT projects - IntelliJ will then examine the SBT build file to figure out all appropriate dependencies
- do Import Project and select the build.sbt file within the project directory
- the default import options are mostly fine, though you probably want to build with the SBT shell
IntelliJ can get confused if you try and import two different SBT projects with the same name
- So, if you copy the app-template directory, you should edit the project name in build.sbt before trying to import it into IntelliJ
- Note that you may prefer to use sbt new darrenjw/breeze.g8 to directly create an app template with an appropriate name and then import that