apply plugin: 'com.android.library' android { compileSdkVersion compile_version defaultConfig { minSdkVersion min_version targetSdkVersion target_version versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) implementation 'com.android.support:appcompat-v7:' + support_version implementation 'com.android.support.constraint:constraint-layout:1.0.2' testImplementation 'junit:junit:4.12' api 'com.google.zxing:core:3.3.0' }