android - 使用 firebase unity sdk firestore 包时 Android 设备上出现错误

Question

我正在尝试在我的 Android 应用程序中使用 firebase unity sdk。具体来说是 FirebaseFirestore.unitypackage。我可以通过统一直接运行我的应用程序，让一切正常运行。但是当我进行 Android 构建并部署到我的实际设备或模拟器时，我收到此错误。

java.lang.ClassNotFoundException: Didn't find class "com/google/firebase/firestore/internal/cpp/QueryEventListener" on path: DexPathList[[zip file "/data/user/0/my.package.name/cache/firestore_resources_lib.jar"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]

然后在日志中显示类似的内容...

E/firebase: Java class com/google/firebase/firestore/internal/cpp/QueryEventListener not found.  Please verify the AAR which contains the com/google/firebase/firestore/internal/cpp/QueryEventListener class is included in your app

我尝试直接从 Unity 中“构建并运行”模拟器和实际设备。我还尝试从 unity 导出项目并将其导入 android studio 并以这种方式创建 apk，但结果相同。

我使用的是unity 2020.3.12f1。 我正在使用随 Unity 安装的 Android SDK 工具

C:\Program Files\Unity\2020.3.12f1\Editor\Data\PlaybackEngines\AndroidPlayer\SDK

我的目标是 Android 9.0 API Lebel 28

我真的不知道发生了什么。我正在使用另一个 unity firebase 包(auth 包)，没有任何问题。但当我第二次尝试使用 Firestore 时，我开始收到此错误。

任何帮助将不胜感激，我已经盯着这个好几天了。

更新:

这是有关错误堆栈跟踪的更多详细信息...

06-30 06:14:09.720 32608 32638 W System.err: java.lang.ClassNotFoundException: Didn't find class "com/google/firebase/firestore/internal/cpp/QueryEventListener" on path: DexPathList[[zip file "/data/user/0/com.paradise.casino.unity.slots/cache/firestore_resources_lib.jar"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] 06-30 06:14:09.721 32608 32638 W System.err: at com.unity3d.player.UnityPlayer.nativeRender(Native Method) 06-30 06:14:09.721 32608 32638 W System.err: at com.unity3d.player.UnityPlayer.access$300() 06-30 06:14:09.721 32608 32638 W System.err: at com.unity3d.player.UnityPlayer$e$1.handleMessage() 06-30 06:14:09.721 32608 32638 W System.err: at com.unity3d.player.UnityPlayer$e.run() 06-30 06:14:09.721 32608 32638 W System.err: Suppressed: java.lang.ClassNotFoundException: Didn't find class "com/google/firebase/firestore/internal/cpp/QueryEventListener" on path: DexPathList[[zip file "/data/user/0/com.paradise.casino.unity.slots/cache/firestore_resources_lib.jar"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] 06-30 06:14:09.721 32608 32638 W System.err: Suppressed: java.lang.ClassNotFoundException: Didn't find class "com/google/firebase/firestore/internal/cpp/QueryEventListener" on path: DexPathList[[zip file "/data/user/0/com.paradise.casino.unity.slots/cache/google_api_resources_lib.jar"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] 06-30 06:14:09.722 32608 32638 W System.err: Suppressed: java.lang.ClassNotFoundException: Didn't find class "com/google/firebase/firestore/internal/cpp/QueryEventListener" on path: DexPathList[[zip file "/data/user/0/com.paradise.casino.unity.slots/cache/app_resources_lib.jar"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] 06-30 06:14:09.722 32608 32638 W System.err: Suppressed: java.lang.ClassNotFoundException: Didn't find class "com/google/firebase/firestore/internal/cpp/QueryEventListener" on path: DexPathList[[zip file "/data/app/com.paradise.casino.unity.slots-2/base.apk"],nativeLibraryDirectories=[/data/app/com.paradise.casino.unity.slots-2/lib/arm, /data/app/com.paradise.casino.unity.slots-2/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]] 06-30 06:14:09.725 32608 32638 W System.err: at com.unity3d.player.UnityPlayer.nativeRender(Native Method) 06-30 06:14:09.725 32608 32638 W System.err: at com.unity3d.player.UnityPlayer.access$300() 06-30 06:14:09.725 32608 32638 W System.err: at com.unity3d.player.UnityPlayer$e$1.handleMessage() 06-30 06:14:09.726 32608 32638 W System.err: at com.unity3d.player.UnityPlayer$e.run() 06-30 06:14:09.924 32608 32638 W System.err: at com.unity3d.player.UnityPlayer.nativeRender(Native Method) 06-30 06:14:09.924 32608 32638 W System.err: at com.unity3d.player.UnityPlayer.access$300() 06-30 06:14:09.924 32608 32638 W System.err: at com.unity3d.player.UnityPlayer$e$1.handleMessage() 06-30 06:14:09.925 32608 32638 W System.err: at com.unity3d.player.UnityPlayer$e.run() 06-30 06:14:09.946 32608 32638 E mono-rt : at Firebase.Firestore.TransactionManagerProxy..ctor (Firebase.Firestore.FirestoreProxy) [0x00000] in Z:\tmp\tmp.FEeynkVB11\firebase\firestore\client\unity\proxy\TransactionManagerProxy.cs:42 06-30 06:14:09.946 32608 32638 E mono-rt : at Firebase.Firestore.TransactionManager..ctor (Firebase.Firestore.FirebaseFirestore,Firebase.Firestore.FirestoreProxy) [0x00013] in Z:\tmp\tmp.FEeynkVB11\firebase\firestore\client\unity\proxy\TransactionManager.cs:45 06-30 06:14:09.946 32608 32638 E mono-rt : at Firebase.Firestore.FirebaseFirestore..ctor (Firebase.Firestore.FirestoreProxy,Firebase.FirebaseApp) [0x00052] in Z:\tmp\tmp.FEeynkVB11\firebase\firestore\client\unity\proxy\FirebaseFirestore.cs:59 06-30 06:14:09.947 32608 32638 E mono-rt : at Firebase.Firestore.FirebaseFirestore.GetInstance (Firebase.FirebaseApp) [0x00035] in Z:\tmp\tmp.FEeynkVB11\firebase\firestore\client\unity\proxy\FirebaseFirestore.cs:132 06-30 06:14:09.947 32608 32638 E mono-rt : at Firebase.Firestore.FirebaseFirestore.get_DefaultInstance () [0x0000c] in Z:\tmp\tmp.FEeynkVB11\firebase\firestore\client\unity\proxy\FirebaseFirestore.cs:116 06-30 06:14:09.947 32608 32638 E mono-rt : at AuthManager.Start () [0x00005] in C:\Users\myname\Documents\repos\myapp\Assets\Scripts\AuthManager.cs:56

Answer 1

这是一个bug在 Unity SDK 8.0.0 中。 我的三星 Galaxy s21 也出现同样的崩溃情况。 Google 应在下一个 firebase-firestore 版本中修复该问题。

Here is a workaround for this bug. I haven't found the root cause yet. The fix, whatever it is, may not be available for some time.

1. Copy firestore_cpp_resources.zip into Assets/Plugins/Android of your Unity project.
2. Change the extension from .zip to .jar (GitHub forbids attaching .jar files, probably for security reasons)
3. Exit and restart the Unity Editor (not sure if this is required, but it fixed a seemingly-unrelated "duplicate import" build error for me)
4. Once the fix is released make sure to delete this JAR file since it will likely conflict with future versions of the Unity SDK.

That firestore_cpp_resources.jar file contains the compiled QueryEventListener class that is erroneously absent from the firestore_resources_lib.jar that is bundled with the Firebase Unity SDK 8.0.0. By providing in via this JAR file it is able to be found and used.