Contributing: Importing Scala CLI source into Metals fails

[keynmol]

At 1.2.0 tag I can no longer import scala CLI into metals:

2024.03.28 09:43:31 INFO  time: ran 'mill bloopInstall' in 3.63s
2024.03.28 09:43:31 ERROR Mill command failed: /Users/velvetbaldmime/projects/scala-cli/.metals/millw --mill-version
 0.11.7 --import ivy:com.lihaoyi::mill-contrib-bloop: mill.contrib.bloop.Bloop/install
2024.03.28 09:56:34 INFO  Shutting down server
2024.03.28 09:56:34 INFO  shutting down Metals
2024.03.28 09:56:34 INFO  Exiting server

The full error is easy to reproduce:

> ./millw mill.contrib.bloop.Bloop/install
[build.sc] [47/53] zincReportCachedProblems
java.util.NoSuchElementException: key not found: List(2.13.13)
    scala.collection.MapOps.default(Map.scala:274)
    scala.collection.MapOps.default$(Map.scala:273)
    scala.collection.AbstractMapView.default(MapView.scala:186)
    scala.collection.MapOps.apply(Map.scala:176)
    scala.collection.MapOps.apply$(Map.scala:175)
    scala.collection.AbstractMapView.apply(MapView.scala:186)
    mill.define.Cross.apply(Cross.scala:372)
    millbuild.build$Scala3Graal.$anonfun$resources$7(build.sc:621)

I have bisected it to 98c8e2a (cc @Gedochao).

Not sure if it's a build perk, or mill-contrib-bloop problem, but this prevented me from taking a look at #2708 which I would very much like to solve actually let me try mill-bsp first.

[Gedochao]

cc @tgodzik

[Gedochao]

@keynmol can you try with the latest main branch? Seems like the changes from #2825 should fix this.

[keynmol]

Thanks folks, it is fixed on lastest main :)