This Gradle file is for the application. It contains all the dependencies and other Android SDK versions.

Here is the following code in the dependencies block:

      // Room components
    implementation "android.arch.persistence.room:runtime:$rootProject.roomVersion"
    kapt "android.arch.persistence.room:compiler:$rootProject.roomVersion"
    androidTestImplementation "android.arch.persistence.room:testing:$rootProject.roomVersion"

    // Lifecycle components
    implementation "android.arch.lifecycle:extensions:$rootProject.archLifecycleVersion"
    kapt "android.arch.lifecycle:compiler:$rootProject.archLifecycleVersion"

    // Coroutines
    api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$rootProject.coroutines"
    api "org.jetbrains.kotlinx:kotlinx-coroutines-android:$rootProject.coroutines"

To enable the coroutines features, add the following code end of the app's build.gradle file:

kotlin {
    experimental {
        coroutines "enable"
    }
}