buildscript { repositories { jcenter() } ext.kotlin_version = '1.1.3-2' dependencies { classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' android { compileSdkVersion 27 defaultConfig { applicationId "com.example.android.pictureinpicture" minSdkVersion 26 targetSdkVersion 27 versionCode 1 versionName "1.0" testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) androidTestCompile('com.androidx.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) compile 'com.android.support:appcompat-v7:27.0.0' compile 'com.android.support:support-media-compat:27.0.0' testCompile 'junit:junit:4.12' compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version" }