App build failure prompts to re-download the google-services file？

Solution：

1、Log in Firebase，find the App and click to enter. 

2、Click “ Settings” ⚙ on the top left corner, continue to click “Project settings”

3、Select “General”，download the file by click on “google-services.json”.

4、Re-upload the downloaded Json file into Tuya IoT platform.

Please click “Certificate configuration” to find “Google FCM”，and upload it on “Upload Json document”，and then Configure certificate.