小编rdx*_*rdx的帖子

crashlytics 仪表板显示许多设备（所有操作系统版本、各种 OEM）都面临此 IOException（SERVICE_NOT_AVAILABLE 或 FIS_AUTH_ERROR）。我很多天都很难弄清楚这个问题。

重现步骤：我无法重现此错误。另外，还浏览了所有 stackoverflow / github 帖子。另外，还浏览了最近的链接java.io.IOException: FIS_AUTH_ERROR in Android Firebase 并更新了我的 google-services.json 文件（因为它已更改）。但这并没有帮助。仍然遇到这些崩溃。

描述您的环境：-

Android Studio version: 4.1.3

Firebase Components used: 
Analytics, 
Crashlytics, 
RemoteConfig, 
Functions, 
Firestore, 
Performance, 
AppIndexing, 
Cloud Messaging, 
Auth, 
InApp messaging

Component version: 27.1.0 (bom)

堆栈跟踪：

Fatal Exception: java.io.IOException: SERVICE_NOT_AVAILABLE
   at com.google.firebase.iid.GmsRpc.handleResponse(com.google.firebase:firebase-iid@@21.1.0:7)
   at com.google.firebase.iid.GmsRpc.lambda$extractResponseWhenComplete$0$GmsRpc(com.google.firebase:firebase-iid@@21.1.0:1)
   at com.google.firebase.iid.GmsRpc$$Lambda$0.then(:2)
   at com.google.android.gms.tasks.zze.run(com.google.android.gms:play-services-tasks@@17.2.0:5)
   at com.google.firebase.iid.FirebaseIidExecutors$$Lambda$0.execute()
   at com.google.android.gms.tasks.zzc.zza(com.google.android.gms:play-services-tasks@@17.2.0:6)
   at com.google.android.gms.tasks.zzq.zza(com.google.android.gms:play-services-tasks@@17.2.0:19)
   at com.google.android.gms.tasks.zzu.zza(com.google.android.gms:play-services-tasks@@17.2.0:104)
   at com.google.android.gms.tasks.zze.run(com.google.android.gms:play-services-tasks@@17.2.0:15)
   at com.google.android.gms.cloudmessaging.zzz.execute()
   at com.google.android.gms.tasks.zzc.zza(com.google.android.gms:play-services-tasks@@17.2.0:6)
   at com.google.android.gms.tasks.zzq.zza(com.google.android.gms:play-services-tasks@@17.2.0:19)
   at com.google.android.gms.tasks.zzu.zza(com.google.android.gms:play-services-tasks@@17.2.0:104)
   at com.google.android.gms.tasks.TaskCompletionSource.setResult(com.google.android.gms:play-services-tasks@@17.2.0:8)
   at com.google.android.gms.cloudmessaging.zzq.zza(com.google.android.gms:play-services-cloud-messaging@@16.0.0:9)
   at com.google.android.gms.cloudmessaging.zzs.zza(com.google.android.gms:play-services-cloud-messaging@@16.0.0:7) …