✅ Help with non-nullable field must contain a non-null value when exiting constructor.

public GameSession()
        {
            CurrentPlayer = new Player
            {
                Name = "MyName",
                Gold = 1000000,
                CharacterClass = "Ranger",
                HitPoints = 10,
                ExperiencePoints = 0,
                Level = 1,
            };

            CurrentWorld = WorldFactory.CreateWorld();

            CurrentLocation = CurrentWorld.LocationAt(0, -1);
        }

public Location CurrentLocation
        {
            get => _currentLocation;
            set
            {
                _currentLocation = value;
                OnPropertyChanged();
            }
        }

public Location LocationAt(int xCoordinate, int yCoordinate)
        {
            foreach (Location loc in _locations)
            {
                if (loc.XCoordinate == xCoordinate && loc.YCoordinate == yCoordinate)
                {
                    return loc;
                }
            }

            throw new LocationNotFoundException($"Location at x:{xCoordinate} y:{yCoordinate} does not exist");
        }