Unity Firebase中的InitializationException

我的Unity项目中的Firebase存在问题 . Firebase SDK已在项目中导入，已构建，在此过程中没有错误 .

SHA-1密钥是使用keytool生成的，并添加到控制台中的Firebase项目中 .

google-services.json也被添加到Assets文件夹中 .

初始化Firebase的简单脚本：

DependencyStatus dependencyStatus = DependencyStatus.UnavailableOther;
// Use this for initialization
void Start () 
{
    Debug.Log ("Start FireBase");
    dependencyStatus = FirebaseApp.CheckDependencies();

    if (dependencyStatus != DependencyStatus.Available) 
    {
        FirebaseApp.FixDependenciesAsync().ContinueWith(task => 
        {
            dependencyStatus = FirebaseApp.CheckDependencies();
            if (dependencyStatus == DependencyStatus.Available) 
            {
                InitializeFirebase();
            } 
            else 
            {
                Debug.LogError("Could not resolve all Firebase dependencies: " + dependencyStatus);
            }
        });
    } 
    else 
    {
        InitializeFirebase();
    }
}

void InitializeFirebase() 
{
    FirebaseAnalytic.Instance().setAnalyticsCollectionEnabled(true);
    FirebaseAnalytic.Instance().setUserProperty(FirebaseAnalytics.UserPropertySignUpMethod, "Google");
    FirebaseAnalytic.Instance().setUserId(SystemInfo.deviceUniqueIdentifier);
    FirebaseAnalytic.Instance().logEvent("LogIn", FirebaseAnalytics.EventLogin);
    Debug.Log ("FirebaseAnalytics Logined");
}

所以应用程序构建和运行没有崩溃 . 但通过 adb logcat -s Unity 我可以看到以下内容：

I/Unity   (27030): Start FireBase

I/Unity   (27030): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 42)
I/Unity   (27030):

I/Unity   (27030): Firebase App initializing app com.boldstatementproductions.mcpro (default 1).

I/Unity   (27030): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 42)
I/Unity   (27030):

W/Unity   (27030): Callback module already shut down

W/Unity   (27030): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 42)

E/Unity   (27030): java_app

E/Unity   (27030): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 42)

I/Unity   (27030): Firebase App initializing app com.boldstatementproductions.mcpro (default 1).

I/Unity   (27030): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 42)

W/Unity   (27030): Callback module already shut down

W/Unity   (27030): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 42)

E/Unity   (27030): java_app

E/Unity   (27030): (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 42)

I/Unity   (27030): InitializationException: Failed to initialize the default Firebase App.

I/Unity   (27030):   at Firebase.FirebaseApp.CreateAndTrack (Firebase.CreateDelegate createDelegate) [0x00000] in <filename unknown>:0

I/Unity   (27030):   at Firebase.FirebaseApp.Create () [0x00000] in <filename unknown>:0

I/Unity   (27030):   at Firebase.FirebaseApp.get_DefaultInstance () [0x00000] in <filename unknown>:0

I/Unity   (27030):   at Firebase.Analytics.FirebaseAnalytics..cctor () [0x00000] in <filename unknown>:0

I/Unity   (27030): Rethrow as TypeInitializationException: An exception was thrown by the type initializer for Firebase.Analytics.FirebaseAnalytics

I/Unity   (27030):   at FirebaseDependencyResolver.InitializeFirebase () [0x00000] in <filename unknown>:0

I/Unity   (27030):   at FirebaseDependencyResolver.Start () [0x00000] in <filename unknown>:0

I/Unity   (27030): (Filename:  Line: -1)

谷歌搜索任何这些消息都没有多大帮助 . 我错过了什么？我一步一步地遵循了针对Unity的Firebase安装教程 . 这个错误已经让我恐惧了一个星期了！