Stub index points to a file without PSI: com.intellij.openapi.fileTypes.UnknownFileType@23713b43

Question

Making app in Android Studio with Gradle I get this error:

Stub index points to a file without PSI: com.intellij.openapi.fileTypes.UnknownFileType@23713b43

Answer 1

Same problem here.

This link is a thread on JetBrain's community forum.

The comments suggest that you do the following:

• Go to File > Invalidate Caches/Restart

This worked for me.