I created with Adobe Flash an .apk app through Air for Android. Now I would like to make it ready for the Blackberry App World with this Blackberry online packager: https:/
Look it up with the Android SDK MAnager. It's not always obvious how to open up the Android SDK manager. First of all, SDK Manager is a feature of the Android Studio; open that. In Android Studio (as of version 2.3.3 in Windows), the SDK Manager is chosen by an icon on the big toolbar which has an incomprehensible glyph. If you can't find it, then instead you can select Tools-->Android-->SDK Manager. In the SDK Manager, select Appearance and Behavior-->System Settings-->Android SDK; and read the field "SDK Location". Hopefully you can figure out what you need from there.
I came to this question after having the same problem in the Unity game engine.