I love Scala, but last time I tried to build an Android app using it (about a month ago), I just got various weird errors in IntelliJ when trying to build it. Eventually I just gave up and rewrote my app in Kotlin instead.
But yeah, it's absolutely my first choice for JVM or web work.
It happened with both the make button and when running it (yes, I had removed the "Gradle-aware make" step and replaced it with android:packageDebug from the SBT shell plugin).
Sadly, I don't have the error message anymore, and it seemed to work when building from the command-line tool. I suppose I could have kept going like that, but it's very nice to have the proper debugging tools that an IDE provides. :/
But yeah, it's absolutely my first choice for JVM or web work.