ClassNotFoundException

[wicker87]

Hello,

I have an issue where when I build the application to the meta quest 3 headset with voice SDK GameObjects(App voice experience, TTS wit service, TTS speaker and a gameobject with app composer experience, composer action handler and composer speech handler), the app crashes when opened. The app is able to run with the voice SDK GameObjects in the editor. I read through the device logs and found that it was due to this error: JNI DETECTED ERROR IN APPLICATION: JNI FindClass called with pending exception java.lang.ClassNotFoundException: Didn't find class "com.unity3d.player.ReflectionHelper" on path: DexPathList[[directory "."],nativeLibraryDirectories=[/system/lib64, /system_ext/lib64, /system/lib64, /system_ext/lib64]]. I am sure that it is due to the voice SDK GameObjects as when the above mentioned GameObjects are removed, the app can be opened. I am using unity 6000.0.51f1. I am using the Meta all in one SDK v77. It seems that another developer posted this issue on the meta developer forums but there was no reply. You can access the post with this link: https://communityforums.atmeta.com/discussions/dev-unity/voice-sdk-activate-crash-in-android-build-on-meta-quest-3/1113302. Could you help me out? Thank you

[Cli0808]

Yes, I am experiencing the same issue where the app can be ran in the editor but crashes immediately when built to meta quest 3. I am using unity 6000.0.47f1 and meta all in one SDK v77.

The crash is occurring during JNI (Java Native Interface) operations when Unity is trying to find a Java class. It originates from AndroidJNI_CUSTOM_FindClass . This happens during scene loading (LoadSceneOperation) and Specifically when MonoBehaviours are being awakened (MonoBehaviour::AwakeFromLoad)

[arctop-kjc]

I’m experiencing the same issue with the exception:
java.lang.ClassNotFoundException: Didn't find class "com.unity3d.player.ReflectionHelper" on path: DexPathList[[directory "."], nativeLibraryDirectories=[/system/lib64, /system_ext/lib64, /system/lib64, /system_ext/lib64]]

I’ve observed that the error does not occur if the microphone permission request window pops up. My current workaround is: reinstall the game and make sure not to check “save my preference” when granting microphone permission, so the popup appears every time.

Additionally, if I try to reopen the game immediately after closing it, the previous session may not have fully ended, preventing the permission window from appearing and causing the crash again.

It seems there’s no way to programmatically force the permission popup if the user previously checked “save my preference,” even with code that requests microphone permission.

This behavior is quite unusual. I hope others can verify it, and that this information provides some clues to the repo owner for a potential fix.