'instanceFactory != null': Object/factory with type UserController is not registered inside GetIt. (But it is) - flutter

Question

I have a two apps project, I am using get_it to get the profile picture from firebase Storage
.
The problem is that in the first app the code is working perfectly and the sign in procedure finish up normally, but in this one I copied the code as it was and made the necessary changes (imports mostly) however getting the profile picture using get_it is interrupting the signing and the sign up procedure and returning this error in the console:
/flutter ( 4798): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: 'package:get_it/get_it_impl.dart': Failed assertion: line 372 pos 7: 'instanceFactory != null': Object/factory with type UserController is not registered inside GetIt.
package:get_it/get_it_impl.dart:372
E/flutter ( 4798): (Did you accidentally do GetIt sl=GetIt.instance(); instead of GetIt sl=GetIt.instance;
E/flutter ( 4798): Did you forget to register it?)
E/flutter ( 4798): #0 _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:51:61)
E/flutter ( 4798): #1 _AssertionError._throwNew (dart:core-patch/errors_patch.dart:40:5)
E/flutter ( 4798): #2 _GetItImplementation._findFactoryByNameAndType
package:get_it/get_it_impl.dart:372
E/flutter ( 4798): #3 _GetItImplementation.get
package:get_it/get_it_impl.dart:393
E/flutter ( 4798): #4 _SignInPageState.build.<anonymous closure>
package:nhafeflek/…/authentication/sign_in.dart:193
E/flutter ( 4798): #5 _SignInPageState.build.<anonymous closure>
package:nhafeflek/…/authentication/sign_in.dart:190
E/flutter ( 4798): #6 _InkResponseState._handleTap
E/flutter ( 4798): #7 GestureRecognizer.invokeCallback
package:flutter/…/gestures/recognizer.dart:198
E/flutter ( 4798): #8 TapGestureRecognizer.handleTapUp
package:flutter/…/gestures/tap.dart:613
E/flutter ( 4798): #9 BaseTapGestureRecognizer._checkUp
package:flutter/…/gestures/tap.dart:298
E/flutter ( 4798): #10 BaseTapGestureRecognizer.handlePrimaryPointer
package:flutter/…/gestures/tap.dart:232
E/flutter ( 4798): #11 PrimaryPointerGestureRecognizer.handleEvent
package:flutter/…/gestures/recognizer.dart:563
E/flutter ( 4798): #12 PointerRouter._dispatch
package:flutter/…/gestures/pointer_router.dart:94
E/flutter ( 4798): #13 PointerRouter._dispatchEventToRoutes.<anonymous closure>
package:flutter/…/gestures/pointer_router.dart:139
E/flutter ( 4798): #14 _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:614:13)
E/flutter ( 4798): #15 PointerRouter._dispatchEventToRoutes
package:flutter/…/gestures/pointer_router.dart:137
E/flutter ( 4798): #16 PointerRouter.route
package:flutter/…/gestures/pointer_router.dart:123
E/flutter ( 4798): #17 GestureBinding.handleEvent
E/flutter ( 4798): #18 GestureBinding.dispatchEvent
package:flutter/…/gestures/binding.dart:425
E/flutter ( 4798): #19 RendererBinding.dispatchEvent
package:flutter/…/rendering/binding.dart:326
E/flutter ( 4798): #20 GestureBinding._handlePointerEventImmediately
package:flutter/…/gestures/binding.dart:380
E/flutter ( 4798): #21 GestureBinding.handlePointerEvent
package:flutter/…/gestures/binding.dart:344
E/flutter ( 4798): #22 GestureBinding._flushPointerEventQueue
package:flutter/…/gestures/binding.dart:302
E/flutter ( 4798): #23 GestureBinding._handlePointerDataPacket
package:flutter/…/gestures/binding.dart:285
E/flutter ( 4798): #24 _rootRunUnary (dart:async/zone.dart:1442:13)
E/flutter ( 4798): #25 _CustomZone.runUnary (dart:async/zone.dart:1335:19)
E/flutter ( 4798): #26 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1244:7)
E/flutter ( 4798): #27 _invoke1 (dart:ui/hooks.dart:170:10)
E/flutter ( 4798): #28 PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:331:7)
E/flutter ( 4798): #29 _dispatchPointerDataPacket (dart:ui/hooks.dart:94:31)
and as I already said it is registered and already working in the other app and here is my code:
My locator.dart file
import 'package:get_it/get_it.dart';
import 'package:nhafeflek/services/auth.dart';
import 'package:nhafeflek/services/storage.dart';
import 'package:nhafeflek/services/userController.dart';
var locator = GetIt.instance;
Future<void> setupServices() async {
locator.registerSingleton<AuthService>(AuthService());
locator.registerSingleton<StorageService>(StorageService());
locator.registerLazySingleton<UserController>(() => UserController());
}
My UserController.dart file:
import 'dart:io';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:nhafeflek/models/user.dart';
import 'package:nhafeflek/services/auth.dart';
import 'package:nhafeflek/services/locator.dart';
import 'package:nhafeflek/services/storage.dart';
class UserController {
late Userr _currentUser;
final AuthService _authService = locator.get<AuthService>();
final FirebaseAuth _auth = FirebaseAuth.instance;
late Future init;
final StorageService _storageService = locator.get<StorageService>();
UserController() {
init = initUser();
}
Future<Userr> initUser() async {
_currentUser = await _authService.getUser();
return _currentUser;
}
Userr get currentUser => _currentUser;
Future<void> uploadProfilePicture(File image) async {
_currentUser.avatarUrl = await _storageService.uploadFile(image);
}
Userr? _userFromFirebaseUser(User? user) {
if (user != null) {
return Userr(uid: user.uid);
} else {
return null;
}
}
Future<String> getDownloadUrl() async {
return await _storageService
.getUserProfileImageDownloadUrl(FirebaseAuth.instance.currentUser!.uid);
}
Future signInWithEmailAndPassword(String email, String password) async {
_currentUser =
await _authService.signInWithEmailAndPassword(email, password);
_currentUser = Userr(
uid: FirebaseAuth.instance.currentUser!.uid,
avatarUrl: await getDownloadUrl());
try {
UserCredential result = await _auth.signInWithEmailAndPassword(
email: email, password: password);
User barber = result.user!;
return _userFromFirebaseUser(barber);
} catch (e) {
return null;
}
}
}
My SignIn button:
ElevatedButton(
onPressed: () async {
if (_formKey.currentState!.validate()) {
dynamic result = await locator
.get<UserController>()
.signInWithEmailAndPassword(email, password);
if (result == null) {
setState(() =>
error = 'Something went wrong... Please try again!');
}
}
},
style: ButtonStyle(
shadowColor:
MaterialStateProperty.all(const Color(0xff5680a7)),
backgroundColor:
MaterialStateProperty.all(const Color(0xff5680a7)),
padding: MaterialStateProperty.all(const EdgeInsets.symmetric(horizontal: 120, vertical: 15)),
shape: MaterialStateProperty.all<RoundedRectangleBorder>(RoundedRectangleBorder(
borderRadius: BorderRadius.circular(5),
side: const BorderSide(
color: Color(0xff5680a7), width: 3)))),
child: const Text(
'Sign In',
style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
)
)
If you need any other sample of the code don't hesitate for asking. I seek your help.