title: How to properly update Google Analytics Unity plugin
body: <p>I have a game for Android with GAv3 installed, if I update Google Analytics to version 4 the game starts but I get some exceptions. Here's a log from Android Device Monitor:</p>
  
  <pre><code>03-15 16:06:44.906: I/Unity(17009): AndroidJavaException: java.lang.ClassNotFoundException: com.google.android.gms.analytics.GoogleAnalytics
  03-15 16:06:44.906: I/Unity(17009): java.lang.ClassNotFoundException: com.google.android.gms.analytics.GoogleAnalytics
  03-15 16:06:44.906: I/Unity(17009):     at java.lang.Class.classForName(Native Method)
  03-15 16:06:44.906: I/Unity(17009):     at java.lang.Class.forName(Class.java:251)
  03-15 16:06:44.906: I/Unity(17009):     at java.lang.Class.forName(Class.java:216)
  03-15 16:06:44.906: I/Unity(17009): Caused by: java.lang.NoClassDefFoundError: com/google/android/gms/analytics/GoogleAnalytics
  03-15 16:06:44.906: I/Unity(17009): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.analytics.GoogleAnalytics" on path: DexPathList[[zip file "/mnt/asec/com.app.game-1/pkg.apk"],nativeLibraryDirectories=[/mnt/asec/com.app.game-1/lib, /vendor/lib, /system/lib]]
  03-15 16:06:45.286: I/Unity(17009): AndroidJavaException: java.lang.ClassNotFoundException: com.google.android.gms.analytics.GoogleAnalytics
  03-15 16:06:45.286: I/Unity(17009): java.lang.ClassNotFoundException: com.google.android.gms.analytics.GoogleAnalytics
  03-15 16:06:45.286: I/Unity(17009):     at java.lang.Class.classForName(Native Method)
  03-15 16:06:45.286: I/Unity(17009):     at java.lang.Class.forName(Class.java:251)
  03-15 16:06:45.286: I/Unity(17009):     at java.lang.Class.forName(Class.java:216)
  03-15 16:06:45.286: I/Unity(17009): Caused by: java.lang.NoClassDefFoundError: com/google/android/gms/analytics/GoogleAnalytics
  03-15 16:06:45.286: I/Unity(17009): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.analytics.GoogleAnalytics" on path: DexPathList[[zip file "/mnt/asec/com.app.game-1/pkg.apk"],nativeLibraryDirectories=[/mnt/asec/com.app.game-1/lib, /vendor/lib, /system/lib]]
  </code></pre>
  
  <p>I tried installing the plugin directly, thus letting Unity overwrite the files, and deleting the files by myself and installing afterwards. In both cases I get these errors.</p>