I have downloaded the default Android Alarm Clock App from the following URL: https://android.googlesource.com/platform/packages/apps/AlarmClock/ I have used the "master" link (then tree => tgz Package) found under the "Branches" header in order to download the Package. Meanwhile, upon importing the Package into Android Studio, I am prompted to convert the Package to Gradle. After performing this conversion, I am obtaining some errors during the Build process. Shouldn't there be an existing Package already built for Gradle?
No. The apps that are part of AOSP are designed to be built as part of a full build of the entire Android OS. They are not designed to be built as standalone apps using just the Android SDK, using Gradle or anything else.