The location service on the device is disabled [Flutter geolocator v6.1.4]

I am always getting that message when trying to get my current location. I am running my app on real device. I followed the documentation instructions here geolocator plugin. At first it gets the location, then after quitting the app ang start it again,it says that

The location service is on the device is disabled

Why I am getting that error even though I already enabled the location services?

class LocationController extends GetxController{

   var position = Position().obs;
   var lat = 0.00.obs;
   var long = 0.00.obs;
 Future getLocation() async {
   try{

       position.value = await Geolocator.getCurrentPosition(desiredAccuracy: LocationAccuracy.high);

       lat.value = position.value.latitude;
       long.value = position.value.longitude;
     } catch (e){
       print(e);
     }
  }
}

Call...

locationController.getLocation();

Download & Import Plugin

geolocator and geocoding

import 'package:geocoding/geocoding.dart';
import 'package:geolocator/geolocator.dart';

In your AndroidManifest add permission

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

initialize variable

Position _currentPosition;
String _currentAddress = "";

Current Location Function

_getCurrentLocation() async {

    await Geolocator.getCurrentPosition(desiredAccuracy: LocationAccuracy.best)
    .then((Position position) {
  setState(() {
   //Pass the lat and long to the function
    _getAddressFromLatLng(position.latitude, position.longitude);

  });
}).catchError((e) {
  print(e);
});
  }

_getAddressFromLatLng

 _getAddressFromLatLng(double latitude, double longitude) async {
    try {
      List<Placemark> p = await placemarkFromCoordinates(latitude, longitude);

      Placemark place = p[0];

      setState(() {
        _currentAddress = "${place.locality}";
        print(_currentAddress);       
    
      });
    } catch (e) {
      print(e);
    }
  }

If above problem occurs just run flutter clean ,uninstall the app then restart the phone and run the project again