apply plugin: 'com.android.library' android { compileSdkVersion 21 buildToolsVersion '27.0.3' defaultConfig { minSdkVersion 16 targetSdkVersion 28 } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' } } } dependencies { api files('libs/xwalk_core_library.jar') }