Upgrading Android app to latest Unity & Google VR now says "app has stopped"

After upgrading an existing Android game to Unity 5.6.1p3 with Google VR SDK 1.60, I now get an immediate crash "Unfortunately, app has stopped" message. I opened Android Studio and looked in the logcat window:

06-13 14:21:43.624 293-3659/? E/AudioPolicyManager: unknown stream type
06-13 14:21:43.624 293-3659/? E/AudioPolicyManager: unknown stream type
06-13 14:21:43.634 29546-29546/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.NealJonesGames.EarthAttack, PID: 29546
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.NealJonesGames.EarthAttack/com.google.unity.GoogleUnityActivity}: java.lang.ClassNotFoundException: Didn't find class "com.google.unity.GoogleUnityActivity" on path: DexPathList[[zip file "/data/app/com.NealJonesGames.EarthAttack-1/base.apk"],nativeLibraryDirectories=[/data/app/com.NealJonesGames.EarthAttack-1/lib/arm, /vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2322)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2474)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1359)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:155)
at android.app.ActivityThread.main(ActivityThread.java:5696)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.unity.GoogleUnityActivity" on path: DexPathList[[zip file "/data/app/com.NealJonesGames.EarthAttack-1/base.apk"],nativeLibraryDirectories=[/data/app/com.NealJonesGames.EarthAttack-1/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1083)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2312)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2474)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1359)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:155)
at android.app.ActivityThread.main(ActivityThread.java:5696)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1028)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)
Suppressed: java.lang.ClassNotFoundException: com.google.unity.GoogleUnityActivity
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
06-13 14:21:43.634 649-1409/? E/ActivityManager: App crashed! Process: com.NealJonesGames.EarthAttack
06-13 14:21:43.634 649-1409/? W/ActivityManager: Force finishing activity com.NealJonesGames.EarthAttack/com.google.unity.GoogleUnityActivity

I've got the Google Cardboard app installed and I can see the link to the game in there okay, so I wonder what is missing? My settings are as follows:

• 32 bit display buffer is off
• Colour space is Gamma
• Auto Graphics API enabled
• Multithreaded rendering off
• Virtual reality SDKs are set to Cardboard (16-bit depth)
• Stereo rendering method is multi-pass
• Minimum API level set to 4.4 Kit-Kat (API level 19)
• Scripting backend is Mono2x
• Device filter is FAT (ARMv7 and x86)
• Stripping level disabled

I've tried a variety of combinations of the settings above but nothing seems to make a difference.

I am using the GoogleVR audio spatializer too, and there is something in the log about an "unknown stream type" but I have been using that spatializer previously without a problem.

Does anyone have any suggestions for me? Thank you in advance!

 

Fixed it courtesy of this post: http://baba-s.hatenablog.com/entry/2017/02/13/100000

I had to edit the /plugins/android/AndroidManifest-Cardboard.xml to replace
com.google.unity.GoogleUnityActivity
with
com.unity3d.player.UnityPlayerActivity

I then copied saved a copy of that file as AndroidManifest.xml along side the other one as I needed to add the licence check permission.

The game runs successfully now!

 

This solution worked for me. Thanks

 

How? How do you edit this? Did you edit it on your phone, or in Unity? i don't understand how to edit this? please help explain it.

 

Whilst you're in Unity, look in the /Plugins/Android folder and you'll see the AndroidManifest-Cardboard.xml that I mentioned in my post.

Edit the line as I explained - but I don't think you need to make a separate AndroidManifest.xml yourself unless you also need to add in further settings for both Cardboard and Daydream.

Rebuild your project - best of luck!