cocos2d-x 读取tmx文件报错 TMXTiledMap: Map not found. Please check the filename

cocos2d-x 读取tmx文件报错
Cocos2d: Assert failed: TMXTiledMap: Map not found. Please check the filename.
Assertion failed: (mapInfo->getTilesets()->count() != 0), function initWithTMXFile, file /Users/yangeric/mIOS/pindie/pindie/libs/cocos2dx/tilemap_parallax_nodes/CCTMXTiledMap.cpp, line 72.
代码block地方为CCTMXTiledMap.cpp的72行：
CCAssert( mapInfo->getTilesets()->count() != 0, "TMXTiledMap: Map not found. Please check the filename.");

提示的是tiles位空，但我们有用tiles，只是创建object来记录位置坐标。好吧，我只能找了个不用的图片放进去。ok
以后找机会提交各patch给cocos2d-x吧。