build.gradle

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

buildscript {
    ext.kotlin_version = '1.2.20'
    repositories {
        jcenter()
        maven { url 'https://maven.google.com' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.3'
        classpath 'com.jakewharton:butterknife-gradle-plugin:8.8.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        jcenter()
        maven { url 'https://maven.google.com' }
        flatDir { dirs 'libs' }
    }
}


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

ext {
    minSdkVersion = 23
    targetSdkVersion = 25
    compileSdkVersion = 25
    buildToolsVersion = '25.0.3'
}