I use com.android.tools.build:gradle:2.0.0-alpha3 and gradle 2.8 before I update to Android Studio 2.0 preview 5. It works fine.
After I update to 2.0 preview 5,it t
Sometimes you must change the gradle versión settings and the wrapper file if you are using a local distribution.
if step 4 is missing, Android studio goes back to gradle-2.8, so i would have to do steps 1-3 every time.
Well it happens to me, i don't know if it is an isolated case.