android – SharedPreference giving “Unable to determine connection on channel.” when used inside flutter_background_service

I am utilizing flutter_background_service to start out a service to fetch knowledge from Cloud.
It is working simply high-quality in Android. However once I run on an iOS Simulator, I get the Above talked about error.

void syncData() async {

  WidgetsFlutterBinding.ensureInitialized();
  Fimber.plantTree(DebugTree());
  Fimber.d("SyncData() referred to as");
  ultimate service = FlutterBackgroundService();
  Fimber.d("Sync Service Began: $service");
  ApiRepo apiRepo = ApiRepo();

  bool isPatientUploaded = false;
  Fimber.d("isPatientUploaded: $isPatientUploaded");

  if(Platform.isAndroid) {
    SharedPreferencesAndroid.registerWith();
    PathProviderAndroid.registerWith();
    FlutterBackgroundServiceAndroid.registerWith();
  } else if (Platform.isIOS) {
    SharedPreferencesIOS.registerWith();
    PathProviderIOS.registerWith();
    FlutterBackgroundServiceIOS.registerWith();
  }
  Fimber.d("Fetching Shared Choice");
  SharedPreferences prefs = await SharedPreferences.getInstance();
  Fimber.d("Fetched Shared Choice: $prefs");
  String? authToken = prefs.getString(PrefKeys.TOKEN);

    ...........
}
 

I can see the Log until “Fetching Shared Choice” after which get an error afterwards. I do not see the Subsequent log.

[VERBOSE-2:ui_dart_state.cc(209)] Unhandled Exception: PlatformException(channel-error, Unable to determine connection on channel., null, null)

That is how I am beginning the Service

startSync() async {
    Fimber.d("startSync() referred to as");
    ultimate service = FlutterBackgroundService();
    Fimber.i("Configuring $service");
    bool? isConfigured = await service.configure(
        iosConfiguration: IosConfiguration(
            onForeground: syncData, onBackground: syncData, autoStart: false),
        androidConfiguration: AndroidConfiguration(
          onStart: syncData,
          isForegroundMode: true,
          autoStart: false,
          foregroundServiceNotificationContent: "Importing Knowledge to Cloud...",
          foregroundServiceNotificationTitle: "Selfi",
        ));
    await DatabaseHelper().db;
    Fimber.i("isConfigured: $isConfigured");
    if (isConfigured) {
      Fimber.d("Beginning Service");
      bool isStarted = await service.startService();
      Fimber.d("Service Began: $isStarted");
    }
  }