How to Convert "Android Open Source Project App" to Gradle Android Studio?

It’s my first time seeing a Project but it’s not look like Android Studio Project i’ve seen before.

git clone https://android.googlesource.com/platform/packages/apps/Music

my friend send me this and i want to develop it like i always doin’. but it cannot. cuz its not Gradle Project. So, how can i convert it?

>Solution :

So, how can i convert it?

You can’t. AOSP doesn’t use Gradle as build system.