build.gradle

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

ext {
    appCompatVersion = '1.3.0'
    constraintLayoutVersion = '2.0.4'
    coreTestingVersion = '2.1.0'
    lifecycleVersion = '2.3.1'
    materialVersion = '1.3.0'
    roomVersion = '2.3.0'
    // testing
    junitVersion = '4.13.2'
    espressoVersion = '3.1.0'
    androidxJunitVersion = '1.1.2'
}

buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.2.2"
        classpath 'com.android.tools.build:gradle:4.0.1'
        classpath 'com.android.tools.build:gradle:3.6.2'
        classpath 'com.google.gms:google-services:4.3.8'

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

allprojects {
    repositories {
        google()
        mavenCentral()
        jcenter() // Warning: this repository is going to shut down soon
    }
}

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