Tried to call Provider of dynamic This is likely a mistake and is therefore unsupported

Creating a ChangeNotifier: Creating the instance inside build using ChangeNotifierProvider . value will lead to memory leaks and potentially undesired side-effects.

notifyListeners method Null safety Call this method whenever the object changes, to notify any clients the object may have changed . Listeners that are added during this iteration will not be visited. Listeners that are removed during this iteration will not be visited after they are removed.