android { ... compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } kotlinOptions { jvmTarget = JavaVersion.VERSION_1_8.toString() } }
compileKotlin { kotlinOptions { jvmTarget = JavaVersion.VERSION_1_8 } }
In build.gradle app file android{ ..... compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } kotlinOptions { jvmTarget = JavaVersion.VERSION_1_8.toString() } }