Android Studio suddenly cannot resolve symbols

Question

Android Studio 0.4.2 was working fine and today I opened it and almost everything was red and the auto-completion had stopped working. I look at the imports and AS seems to

Answer 1

I fixed this by removing the settings.gradle from my module subproject. It's a Java Gradle project with it's own settings.gradle file that somehow it screws it up.

Thanks to this guy: https://stackoverflow.com/a/33978721/425238