143,520 questions
0
votes
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24
views
iOS "Link to existing Firebase app" option missing - Android works fine [closed]
I am trying to link my iOS app in AdMob to its existing Firebase project. However, the option to "Link to an existing Firebase app and project" is missing for iOS, even though it was ...
- 153
5
votes
0
answers
56
views
Unity UMP always shows “User Consented” even when user denies – Firebase analytics enabled incorrectly
I’m using Unity 2022.3.6f1 with Google UMP (User Messaging Platform) and Firebase Analytics on Android. I want to respect the user’s consent for data collection, but no matter what I choose, Firebase ...
- 51
0
votes
1
answer
66
views
Flutter web deployed on firebase is unable to receive any data though database streams
I am trying to deploy a flutter web application on firebase. In this minimum working example a stream from a collection should be returned and simply displayed.
When run locally, the object is ...
- 14.1k
0
votes
1
answer
48
views
Operation is not allowed - firebase phone verification code
I'm trying to build a phone number OTP verification system using Firebase and Android Studio using Java.
I've set up the things in Firebase, the SHA-1 and SHA-256, and the phone sign-in method is ...
0
votes
0
answers
49
views
Flutter Firebase Realtime Database .once() hangs on cold start after signInAnonymously()
I have a Flutter application which uses Firebase anonymous auth and Realtime Database.
On app startup, it should automatically log in, check some settings (working hours) and navigate to the next ...
- 79
0
votes
0
answers
36
views
firebase_app_distribution action fails with "execution expired" timeout during IPA upload
Issue Description
The firebase_app_distribution action consistently fails with a timeout error when attempting to upload an IPA file. The upload process runs for exactly 360 seconds (6 minutes) before ...
- 161
-1
votes
2
answers
58
views
Can Firebase functions.config() still be used in first-generation functions after December 2025?
My functions dependency version is:
"firebase-admin": "^12.7.0",
"firebase-functions": "5.1.1".
I'm deploying first-generation functions.
In this case, can I ...
- 17
0
votes
1
answer
62
views
Getting 405 Error when Login button is clicked
I'm creating a Login page for my Chocolate Shop Personal project but I'm trying to get it working with Firebase in which I've connected it to. However, I should be getting either an error logging in ...
1
vote
0
answers
62
views
WordPress site freezes when sending FCM notifications to large topics via wp_remote_post()
I'm developing a WordPress plugin that sends push notifications via Firebase Cloud Messaging (FCM v1 API). The plugin works perfectly when sending to small topics (1-2 devices), but causes the entire ...
- 37
Advice
3
votes
1
replies
69
views
Converting Google Apps Script attendance system to Firebase + Laravel: Best approach for real-time clock-in sync?
Context
Junior full stack developer here, I'm migrating a Google Apps Script attendance management system to a hybrid architecture:
Frontend: Firebase Hosting (HTML/CSS/JS clock interface)
Backend: ...
- 1
2
votes
1
answer
75
views
This 'onError' handler must return a value assignable to 'UserCredential', but ends without returning a value. Try adding a return statement
ArgumentError (Invalid argument(s) (onError): The error handler of Future.catchError must return a value of the future's type)
I get the above error when I log in with credentials that don't exist in ...
0
votes
1
answer
76
views
collection('attendance_report').get() returns empty snapshot even though data exists [duplicate]
I'm building an admin attendance viewer in Flutter using GetX and Cloud Firestore. The UI uses cascading dropdowns (Department → Semester → Section → Subject → Class Date → Attendance list).
The ...
0
votes
1
answer
49
views
How to avoid "zombie" Firebase anonymous users when linking Sign in with Apple?
I was wondering what would be a solid flow to prevent multiple Firebase anonymous users from being created on a single device.
We currently use the following API to create an anonymous user:
Auth.auth(...
- 42.9k
0
votes
0
answers
82
views
Flutter iOS Build Error: 'openssl_grpc/boringssl_prefix_symbols.h' file not found
I am trying to run my Flutter application on an iOS Simulator, but the build fails during the Xcode build phase. The error seems related to the BoringSSL-GRPC dependency used by Firebase.
Lexical or ...
-1
votes
1
answer
82
views
Logging numbers preceding with zeros like 00123456789 as string loses zeros
Trying to save numbers(00123456789) as string to firebase from web browsers and service, but it appears without zeros in firebase console.
But when we save the same data from native mobile apps it ...
