apply plugin: 'com.android.application' // The sample build uses multiple directories to // keep boilerplate and common code separate from // the main sample code. List<String> dirs = [ 'main'] // main sample code; look here for the interesting stuff. android { compileSdkVersion 26 buildToolsVersion '26.0.2' defaultConfig { minSdkVersion 26 targetSdkVersion 26 } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } sourceSets { main { dirs.each { dir -> java.srcDirs "src/${dir}/java" res.srcDirs "src/${dir}/res" } } androidTest.setRoot('tests') androidTest.java.srcDirs = ['tests/src'] } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } } dependencies { implementation "com.android.support:support-v4:26.1.0" implementation "com.android.support:support-v13:26.1.0" implementation "com.android.support:cardview-v7:26.1.0" implementation "com.android.support:appcompat-v7:26.1.0" implementation 'com.android.support:design:26.1.0' implementation 'com.android.support.constraint:constraint-layout:1.0.2' implementation group: 'com.google.guava', name: 'guava', version: '22.0-android' }