apply plugin: 'com.android.application' android { compileSdkVersion 25 buildToolsVersion '27.0.3' defaultConfig { applicationId "com.example.app" minSdkVersion 21 targetSdkVersion 25 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) }