Question 120459 in Firebase Question posted in
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Firebase – Flutter java.io.IOException: FIS_AUTH_ERROR

I’m getting "FIS_AUTH_ERROR" error when using the release build but in debug build not getting any issue, it’s working completely in last week but today I’m getting this error. I have search lot’s of think and getting solution but it’s not be work in my end. below I’m mention the which solution I have try.

1 First solution.
2 Second solution.

I have try both above solution but it’s not working my end.

Error code line:

var _deviceToken = await FirebaseMessaging.instance.getToken();

Thank in Advance.

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2

Answers


  1. Chosen as BEST ANSWER
    0

    After 3 day's I have found the solution. I have take SHA-1 from Google developer console(App integrity) and add in Google cloud console project and also set inside Firebase project and updated Google-service.json file use.


  2. 0

    I had the same issue not able to generate fcm device token in android but it was working fine in ios.

    I checked web api key in the firebase console it was different than what I had in google-servies.json so i just replace json file api key with firebase.

    And it worked.

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