Today, Google released SDK 6 API 23+.
I tried to create a project with the API 23, but I\'m having the following problem:
Failed to resolve: com.android.supp
First you need to download the latest support repository (17 by the time I write this) from internal SDK manager of Android Studio or from the stand alone SDK manager. Then you can add compile 'com.android.support:appcompat-v7:23.0.0' or any other support library you want to your build.gradle file. (Don't forget the last .0)