build.gradle

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

buildscript {
  repositories {
    google()
    jcenter()
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:3.5.1'
    classpath 'com.google.gms:google-services:4.3.2'
  }
}

allprojects {
  repositories {
    google()
  }
}

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