Okay, I don't know if I am in the right place to ask this but I am doing a college assignment to make a game in flash builder. I am trying to import an OGMO map that I made into flash but when I try and run the programme it comes up with ArgumentError: Error #2015: Invalid BitmapData. I really don't know where I am going wrong here. I am following this tutorial here. FlashPunk Tutorial 02: Loading and Reading OGMO Maps – Creating Tilemaps | The Doglion Any help would be greatly appreciated. Thanks.