gistfile1.txt

apply plugin: 'com.android.application'
// ...
apply plugin: 'com.google.firebase.appdistribution'
// ...
buildscript {
    repositories {
        google()
    }
    dependencies {
        classpath 'com.google.gms:google-services:4.3.2'  // Google Services plugin
        classpath 'com.google.firebase:firebase-appdistribution-gradle:1.1.0'
    }
}
// Add the following line to the bottom of the file:
apply plugin: 'com.google.gms.google-services'  // Google Play services Gradle plugin