build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    ext.kotlin_version = "1.3.72"
    repositories {

        google()
        jcenter()
    }
    dependencies {

        classpath "com.android.tools.build:gradle:4.0.1"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // NOTE: Do not place your application dependencies here; they belong
        classpath 'com.google.gms:google-services:4.3.4'
        // in the individual module build.gradle files
        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.1.0-alpha05"
    }
}

allprojects {
    repositories {
        maven { url 'https://jitpack.io' }
        google()
        jcenter()
    }
}

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