examples/android/helloworld/build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        // See AGP compatibility with Gradle here:
        // https://developer.android.com/studio/releases/gradle-plugin#updating-gradle.
        classpath 'com.android.tools.build:gradle:4.2.2'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}