title: Unity's Google In-App Review plugin error: java.lang.ClassNotFoundException: com.google.android.play.core.review.ReviewManagerFactory
body: <p>I'm trying to integrate Google's <a href="https://developer.android.com/guide/playcore/in-app-review/unity" rel="nofollow noreferrer">In-app Review</a> feature into my Unity application and getting the following runtime error message on logcat console. Anyone knows the solution to this problem?</p>
  <p><code>AndroidJavaException: java.lang.ClassNotFoundException: com.google.android.play.core.review.ReviewManagerFactory  (Filename: currently not available on il2cpp Line: -1)</code></p>