build.gradle

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

apply plugin: 'com.github.ben-manes.versions'

buildscript {
    ext {
        kotlinVersion = '1.2.41'
        minSdkVersion = 21
        sdkVersion = 27
        buildToolsVersion = '27.0.3'
        supportLibraryVersion = '27.1.1'
        takisoftFixVersion = '27.1.1.0'
        playServicesVersion = '12.0.1'
        junitVersion = '4.12'
        androidTestVersion = '1.0.2'
        androidEspressoVersion = '3.0.2'
    }

    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
        classpath 'com.github.ben-manes:gradle-versions-plugin:0.17.0'
        classpath 'com.google.gms:google-services:3.2.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

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