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FirebaseInstanceIdService.onTokenRefresh 从未调用

[英]FirebaseInstanceIdService.onTokenRefresh never called

I have implemented Firebase for cloud messaging :我已经实现了用于云消息传递的 Firebase:

https://firebase.google.com/docs/cloud-messaging/android/client#sample-register https://firebase.google.com/docs/cloud-messaging/android/client#sample-register

I have follow all the steps but FirebaseInstanceIdService.onTokenRefresh is never called.我已按照所有步骤操作,但从未调用 FirebaseInstanceIdService.onTokenRefresh。

the only message from firebase on the log is :日志中来自 firebase 的唯一消息是:

FirebaseInitProvider: FirebaseApp initialization unsuccessful

What can i do to get this token?我该怎么做才能得到这个令牌?

在我的情况下卸载并重新安装应用程序工作

Setup the firebase sdk and generate a google-services.json and include it in your project.设置 firebase sdk 并生成 google-services.json 并将其包含在您的项目中。 As described in this guide .如本指南所述

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