With 0.4.3 Android Studio, error: “Gradle project sync failed. Basic functionality (e.g. editing, debugging) will not work properly”

Question

I have noticed that several people are having issues after upgrading to Android Studio 0.4.3 (problem with 0.4.2 also I believe). My error and debug steps so far are as foll

Answer 1

File -> Invalidate Cache / Restart

Works sometimes for this