Firebase is not getting initialized right - ios

Question

So, I wanted to include firebase into my Flutter App, it works fine for android but when I start it on my ios emulator it will always give me this error
[VERBOSE-2:ui_dart_state.cc(209)] Unhandled Exception: [core/not-initialized] Firebase has not been correctly initialized.
Usually this means you've attempted to use a Firebase service before calling Firebase.initializeApp.
View the documentation for more information: https://firebase.flutter.dev/docs/overview#initialization
I have the google-service file in the right directory and I followed the tutorial and edited my main() to:
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(const MyApp());
}
Has anybody the same problem with IOS or did I do anything wrong?

Answer 1

So for everybody else getting this error I figured it out myself, for IOS, the line
Firebase.initializeApp()
it needs an option:
Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform)
for that follow the instructions on this link:
https://firebase.flutter.dev/docs/cli
hope that helps anyone

Answer 2

Install Firebase CLI if it is not installed in your system.
Next, install the FlutterFire CLI or by running the following command:dart pub global activate flutterfire_cli. Once installed, the flutterfire command will be globally available.
Run flutterfire configure in your flutter project folder in terminal,
Select a Firebase project to configure your Flutter application with,
Select/Insert android app id and bundle id you want to use as and when it asks you.
and get firebase_options.dart.
In main.dart file import firebase_options.dart.
In void main() use following code.
WidgetsFlutterBinding.ensureInitialized();
if (Platform.isIOS) {
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);
} else {
await Firebase.initializeApp();
}
runApp(
const MaterialApp(
home: MyApp(),
),
);

Answer 3

I got same problem. My Android application is working fine but when using IOS application it's throw this type of exception. you can use #Viki's answer and if its not working for you make sure you have added GoogleServices-info.plist file in your ios project.
If it's not solve your issue then use this code
if (Platform.isIOS) {
await Firebase.initializeApp(
options: FirebaseOptions(
apiKey: "your api key Found in GoogleService-info.plist",
appId: "Your app id found in Firebase",
messagingSenderId: "Your Sender id found in Firebase",
projectId: "Your Project id found in Firebase"));
} else {
await Firebase.initializeApp();
}

Answer 4

I have faced the same issue in my flutter application when run on xcode/ ios.
Here is how I solved.
Download GoogleService-Info.plist from firebase account
Add Files to Runner like below and choose GoogleService-Info.plist from download folder
Re-Run the project, It will work

Answer 5

In my case, I haven't added the code lines according to the instructions from firebase. The simple fix is ​​to follow the instructions from the firebase doc from start to finish.

Answer 6

In my case, I forgot to add await because it returns Future.
Previously:
Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);
Then
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);

Answer 7

Here is the full function to copy paste.
Convert the main function to:
Future main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
runApp(const MyApp());
}