I am using workmanager and geolocator package and trying to access user location in background and also save it into firestore but it doesn’t work

Here is the code

@pragma('vm:entry-point')
void callbackDispatcher() {
  Workmanager().executeTask((task, inputData) async {
    WidgetsFlutterBinding.ensureInitialized();
    await Firebase.initializeApp();
    DartPluginRegistrant.ensureInitialized();

    switch (task) {
      case 'adminTask':
        await performAdminTask();
        break;
      case 'userTask':
        await performUserTask();
        break;
      default:
        print('Unknown task');
        break;
    }
    return Future.value(true);
  });
}

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  Workmanager().initialize(
    callbackDispatcher,
    isInDebugMode: true,
  );
  runApp(const MyApp());
}

Here is the performAdmintask function

import 'dart:async';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/foundation.dart';
import 'package:geolocator/geolocator.dart';

Future<void> performAdminTask() async {
  late LocationSettings locationSettings;

  if (defaultTargetPlatform == TargetPlatform.android) {
    locationSettings = AndroidSettings(
        accuracy: LocationAccuracy.high,
        forceLocationManager: true,
        intervalDuration: const Duration(seconds: 10),
        foregroundNotificationConfig: const ForegroundNotificationConfig(
          notificationText:
              "Example app will continue to receive your location even when you aren't using it",
          notificationTitle: "Running in Background",
          enableWakeLock: true,
        ));
  } else if (defaultTargetPlatform == TargetPlatform.iOS ||
      defaultTargetPlatform == TargetPlatform.macOS) {
    locationSettings = AppleSettings(
      accuracy: LocationAccuracy.high,
      activityType: ActivityType.fitness,
      pauseLocationUpdatesAutomatically: true,
      // Only set to true if our app will be started up in the background.
      showBackgroundLocationIndicator: false,
    );
  } else {
    locationSettings = const LocationSettings(
      accuracy: LocationAccuracy.high,
    );
  }
  Geolocator.getPositionStream(locationSettings: locationSettings)
      .listen((event) async {
    await saveLocationToFirestore(event);
  });
}

Future<void> saveLocationToFirestore(Position position) async {
  try {
    const userRole = 'Admin';
    final docRef = FirebaseFirestore.instance
        .collection(userRole)
        .doc(FirebaseAuth.instance.currentUser!.uid);
    final docData = await docRef.get();
    Map<String, dynamic> map = docData.data() as Map<String, dynamic>;
    if (map.containsKey('latitude') && map.containsKey('longitude')) {
      docRef.update({
        'latitude': position.latitude,
        'longitude': position.longitude,
        'timestamp': FieldValue.serverTimestamp(),
      });
    } else {
      docRef.set({
        'latitude': position.latitude,
        'longitude': position.longitude,
        'timestamp': FieldValue.serverTimestamp(),
      }, SetOptions(merge: true));
    }
  } catch (e) {
    print('Error saving location to Firestore: $e');
  }
}

and here i register task
`

     Workmanager().registerOneOffTask(
        'adminTaskId',
        'adminTask',
      );

What is the problem i dont understand i am using workmanager 0.5.2 and geolocator 11.1.0.