apply plugin: 'kotlin-android' rootProject.ext { compileSdk = 30 minSdk = 21 targetSdk = 30 } android { compileSdkVersion rootProject.ext.compileSdk defaultConfig { minSdkVersion rootProject.ext.minSdk targetSdkVersion rootProject.ext.targetSdk } compileOptions { sourceCompatibility = JavaVersion.VERSION_1_8 targetCompatibility = JavaVersion.VERSION_1_8 } kotlinOptions { jvmTarget = JavaVersion.VERSION_1_8.toString() } buildFeatures { viewBinding true } } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib" }