Compiler Errors

I can't see the problem but there is one. Terminal: Game.cs(9,7): error CS0246: The type or namespace name Map' could not be found. Are you missing an assembly reference? Game.cs(11,7): error CS0246: The type or namespace namePoint' could not be found. Are you missing an assembly reference? Game.cs(13,22): error CS0841: A local variable map' cannot be used before it is declared Game.cs(15,19): error CS0246: The type or namespace namePoint' could not be found. Are you missing an assembly reference? Game.cs(15,7): error CS0841: A local variable point' cannot be used before it is declared Game.cs(16,17): error CS0841: A local variablemap' cannot be used before it is declared Game.cs(19,18): error CS0841: A local variable `map' cannot be used before it is declared

Text Editor (Visual Studio Code): using System;

namespace TowerDefense { class Game { public static void Main() { Map map = new Map(8, 5);

  Point point = new Point(4, 2);

  bool isOnMap = map.OnMap(point);

  point = new Point(8,5);
  isOnMap = map.OnMap(point);
  Console.WriteLine(isOnMap);

  int area = map.width * map.height;
}

} }