I've got an annoying problem, so with the latest IntelliJ Ultimate, I create a brand new multiplatform project, compile and run, all works. Then I add a new library to the

commonMain

source set, and IntelliJ doesn't seem to know about them. Auto-complete won't recommend them. I Can add the import manually and it's fine, but the IDE doesn't seem to know about it. I have tried invalidate and restart, deleting the

.idea/

directory and re-importing the project, doesn't matter. I've also tried on separate computers & OSs (OSX & Windows) and its the same. Is this something anyone else has run into?

Yes, there seems to be a regression in MPP project indexing that leads to missing autocompletion, missing search results etc. The best thing to do is to diligently report all issues to Kotlin or IDEA YouTrack.

done https://youtrack.jetbrains.com/issue/IDEA-289810