错误：
File "E:/advcomp/game/mainGame.py", line 3, in <module>
from Loading import *
File "E:\advcomp\game\Loading.py", line 37, in <module>
gameMap = pytmx.load_pygame("gameMap.tmx", pixelalpha = True)
File "C:\Users\Administrator.BAC-F060-D003.000\Desktop\pythonFiles\lib\site-packages\pytmx\util_pygame.py", line 116, in load_pygame
return pytmx.TiledMap(filename, *args, **kwargs)
File "C:\Users\Administrator.BAC-F060-D003.000\Desktop\pythonFiles\lib\site-packages\pytmx\pytmx.py", line 285, in __init__
self.parse_xml(ElementTree.parse(self.filename).getroot())
File "C:\Users\Administrator.BAC-F060-D003.000\Desktop\pythonFiles\lib\site-packages\pytmx\pytmx.py", line 357, in parse_xml
self.reload_images()
File "C:\Users\Administrator.BAC-F060-D003.000\Desktop\pythonFiles\lib\site-packages\pytmx\pytmx.py", line 429, in reload_images
image = loader()
File "C:\Users\Administrator.BAC-F060-D003.000\Desktop\pythonFiles\lib\site-packages\pytmx\util_pygame.py", line 90, in load_image
tile = smart_convert(tile, colorkey, pixelalpha)
File "C:\Users\Administrator.BAC-F060-D003.000\Desktop\pythonFiles\lib\site-packages\pytmx\util_pygame.py", line 54, in smart_convert
tile = original.convert_alpha()
pygame.error: No video mode …