I\'m trying the new Android Studio. I\'ve exported a project from eclipse, using the build gradle option. I\'ve then imported it in Android Studio. The R.java file under gen
At first check if there is import android.R; in top of your class this happens when auto import in enable in android studio.
after that comment all lines of your code that you use R variable (you can comment entire class or ...) then run application it regenerates R variable and you can uncomment your code.