apply plugin: 'com.android.library' apply plugin: 'kotlin-android' android { compileSdkVersion compile_sdk_version compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } defaultConfig { targetSdkVersion target_sdk_version minSdkVersion min_sdk_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 { implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" implementation "androidx.appcompat:appcompat:$appcompat_version" }