ServicesBinding.defaultBinaryMessenger problem while using Flutter's compute function

i'm building an explorer using flutter getting apps length will take a while so i tried to get the value using annother Isolate, that's part of my main.dart code

Future<int> getValueFromIsolate() async {
 return await compute(
  apps,
  0,
 );
}

Future<int> apps(int n) async {
int value = 0;
List apps = await DeviceApps.getInstalledApplications(
 includeAppIcons: true,
 includeSystemApps: true,
 onlyAppsWithLaunchIntent: true,
 );
 print(apps.length);
 value = apps.length;
 print(value);
 return value;
}

And so there is my main function

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  getValueFromIsolate().then(
  (value) {
    print("Then the value is $value");
    },
  );
  runApp(
    MultiProvider(
      providers: [
        ChangeNotifierProvider(
          create: (_) => AppProvider(),
        ),
        ChangeNotifierProvider(
         create: (_) => CategoryProvider(),
        ),
       ChangeNotifierProvider(
        create: (_) => CoreProvider(),
     ),
   ],
   child: MyApp(),
  ),
 );
}

But i still got this error

I/flutter ( 6234): ServicesBinding.defaultBinaryMessenger was accessed before the binding was initialized. I/flutter ( 6234): If you're running an application and need to access the binary messenger before runApp() has been called (for example, during plugin initialization), then you need to explicitly call the WidgetsFlutterBinding.ensureInitialized() first. I/flutter ( 6234): If you're running a test, you can call the TestWidgetsFlutterBinding.ensureInitialized() as the first line in your test's main() method to initialize the binding.

I don't understand what it's happening and i don't know what to do..!! Please need your help Thanks for reading and your help