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Firebase升级后，Unity Cloud Build中出现数百个重复的类构建错误

分类：编程问答

如何解决Firebase升级后，Unity Cloud Build中出现数百个重复的类构建错误

我们有一个Unity项目（Unity 2019.2.15f1），我们在其中使用多个Firebase插件： 云存储，消息传递和远程配置

我们最近将Firebase Unity插件从v6.7.0更新到了v6.15.2 本地版本已通过，甚至可以在Android手机上使用。

但是，它在Unity Cloud Build中引发了100多个重复的类构建错误。 我们对此问题一无所知，并且正在努力寻找解决办法。 请在附件中找到Unity Cloud Build的构建日志。 有人遇到过同样的问题吗？ 请帮助我修复它。

97: [Unity] ERROR:   Duplicate class com.google.android.gms.internal.measurement.zzw found in modules classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.4:)
998: [Unity] ERROR:   Duplicate class com.google.android.gms.internal.measurement.zzx found in modules classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.4:)
999: [Unity] ERROR:   Duplicate class com.google.android.gms.internal.measurement.zzy found in modules classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.4:)
1000: [Unity] ERROR:   Duplicate class com.google.android.gms.internal.measurement.zzz found in modules classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.4:)
1001: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurement found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1002: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurement$ConditionalUserProperty found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1003: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurement$Event found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1004: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurement$EventInterceptor found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1005: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurement$OnEventListener found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1006: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurement$Param found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1007: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurement$UserProperty found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1008: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurementContentProvider found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1009: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurementinstallreferrerReceiver found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1010: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurementJobService found in modules classes.jar (:com.google.android.gms.play-services-measurement-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-17.4.4:)
1011: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurementReceiver found in modules classes.jar (:com.google.android.gms.play-services-measurement-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-17.4.4:)
1012: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.AppMeasurementService found in modules classes.jar (:com.google.android.gms.play-services-measurement-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-17.4.4:)
1013: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.api.AppMeasurementSdk found in modules classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.4:)
1014: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.api.AppMeasurementSdk$ConditionalUserProperty found in modules classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.4:)
1015: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.api.AppMeasurementSdk$EventInterceptor found in modules classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.4:)
1016: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.api.AppMeasurementSdk$OnEventListener found in modules classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-sdk-api-17.4.4:)
1017: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.internal.AppMeasurementDynamiteService found in modules classes.jar (:com.google.android.gms.play-services-measurement-sdk-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-sdk-17.4.4:)
1018: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.internal.AppMeasurementDynamiteService$zza found in modules classes.jar (:com.google.android.gms.play-services-measurement-sdk-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-sdk-17.4.4:)
1019: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.internal.AppMeasurementDynamiteService$zzb found in modules classes.jar (:com.google.android.gms.play-services-measurement-sdk-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-sdk-17.4.4:)
1020: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.internal.zza found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1021: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.internal.zzaa found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1022: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.internal.zzab found in modules classes.jar (:com.google.android.gms.play-services-measurement-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)

1323: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.internal.zzz found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1324: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.module.Analytics found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1325: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.module.Analytics$Event found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1326: [Unity] ERROR:   Duplicate class com.google.android.gms.measurement.module.Analytics$Param found in modules classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-impl-17.4.4:)
1327: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.FirebaseAnalytics found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1328: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.FirebaseAnalytics$Event found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1329: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.FirebaseAnalytics$Param found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1330: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.FirebaseAnalytics$UserProperty found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1331: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.connector.AnalyticsConnectorImpl found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1332: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.connector.AnalyticsConnectorImpl$1 found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1333: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.connector.internal.AnalyticsConnectorRegistrar found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)
1334: [Unity] ERROR:   Duplicate class com.google.firebase.analytics.connector.internal.zza found in modules classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.2:) and classes.jar (:com.google.android.gms.play-services-measurement-api-17.4.4:)

1345: [Unity] ERROR:   Duplicate class com.google.protobuf.AbstractMessageLite found in modules com.google.protobuf.protobuf-javalite-3.11.0.jar (com.google.protobuf.protobuf-javalite-3.11.0.jar) and com.google.protobuf.protobuf-lite-3.0.1.jar (com.google.protobuf.protobuf-lite-3.0.1.jar)
1346: [Unity] ERROR:   Duplicate class com.google.protobuf.AbstractMessageLite$Builder found in modules com.google.protobuf.protobuf-javalite-3.11.0.jar (com.google.protobuf.protobuf-javalite-3.11.0.jar) and com.google.protobuf.protobuf-lite-3.0.1.jar (com.google.protobuf.protobuf-lite-3.0.1.jar)
1347: [Unity] ERROR:   Duplicate class com.google.protobuf.AbstractMessageLite$Builder$LimitedInputStream found in modules com.google.protobuf.protobuf-javalite-3.11.0.jar (com.google.protobuf.protobuf-javalite-3.11.0.jar) and com.google.protobuf.protobuf-lite-3.0.1.jar (com.google.protobuf.protobuf-lite-3.0.1.jar)
1348: [Unity] ERROR:   Duplicate class com.google.protobuf.AbstractParser found in modules com.google.protobuf.protobuf-javalite-3.11.0.jar (com.google.protobuf.protobuf-javalite-3.11.0.jar) and com.google.protobuf.protobuf-lite-3.0.1.jar (com.google.protobuf.protobuf-lite-3.0.1.jar)
1349: [Unity] ERROR:   Duplicate class com.google.protobuf.AbstractProtobufList found in modules com.google.protobuf.protobuf-javalite-3.11.0.jar (com.google.protobuf.protobuf-javalite-3.11.0.jar) and com.google.protobuf.protobuf-lite-3.0.1.jar (com.google.protobuf.protobuf-lite-3.0.1.jar)
1350: [Unity] ERROR:   Duplicate class com.google.protobuf.BooleanArrayList found in modules com.google.protobuf.protobuf-javalite-3.11.0.jar (com.google.protobuf.protobuf-javalite-3.11.0.jar) and com.google.protobuf.protobuf-lite-3.0.1.jar (com.google.protobuf.protobuf-lite-3.0.1.jar)
1351: [Unity] ERROR:   Duplicate class com.google.protobuf.ByteBufferWriter found in modules com.google.protobuf.protobuf-javalite-3.11.0.jar (com.google.protobuf.protobuf-javalite-3.11.0.jar) and com.google.protobuf.protobuf-lite-3.0.1.jar (com.google.protobuf.protobuf-lite-3.0.1.jar)

解决方法

首先，也许旧文件仍然存在。您可以尝试进行干净的构建吗？

来自"Why is my build failing in Unity Cloud Build but building fine locally?"：

尝试从仪表板进行干净的构建（见下文）。

clean build ui from unity support

如果这不能解决问题，则问题似乎与解决依赖关系有关（Firebase使用名为"Extended Dependency Manager for Unity" or "EDM4U"的工具来解决此问题）。

如果您使用的是正常的程序包分辨率（即，在jar下看到许多Assets/Plugins/Android/，则可以尝试生成mainTemplate.gradle 。 EDM4U将删除它在Assets/Plugins/android/下管理的所有库文件，并将它们作为依赖项添加到gradle文件中。然后，应按照正常的gradle流程完成构建。

对于这种情况，这是传统的依赖性管理，您可能还需要检查这些文件是否包含在源代码管理中。如果不是，您可以尝试添加它们。如果是这样，您可以尝试排除它们。另外，如果您提交了旧的库，则更新它们可能会有所帮助。

反之亦然：如果您已经在使用mainTemplate.gradle文件，请尝试将其删除并恢复为旧的依赖项管理样式。这可以解决问题。

您可以尝试做的最后一件事：删除ExternalDependencyManager下的Assets/文件夹或转到 Screenshot showing the menu tree to

如果愿意的话，这是转到Unity issues的绝佳问题。目前，Unity Cloud Build尚无太多工作要做，这将使建立来回调试变得更加容易。

,

将Firebase Analytics和AdMob添加到Unity应用程序时，我遇到了同样的问题。

我执行了以下步骤来解决问题：

  1. 将android SDK，NDK和工具更新为必要的版本
  2. 添加外部依赖项管理器（android jar解析器）
  3. 选择资产->外部依赖项管理器-> Android解析器->解析
  4. 尝试构建应用并查看错误（如您的错误）
  5. 转到文件资源管理器并找到项目文件夹
  6. 搜索冲突文件（在项目文件夹中）

例如：

Duplicate class
> com.google.android.gms.internal.measurement.zzw found in modules
> classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.2:) and
> classes.jar (:com.google.android.gms.play-services-measurement-base-17.4.4:)

搜索* com.google.android.gms.play-services-measurement-base- *（开头和结尾的*表示资源管理器的搜索中可以有任何符号），并从结果中删除所有版本较低的文件（17.4.2）

  1. 尝试再次构建应用程序
  2. 如果您的示例中出现一些添加错误，请转到步骤5
  3. 完成

这对我有用，但是我不确定是否对您有用，但是您可以尝试。

祝你好运

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