微信小游戏远程加载图片，同名资源文件替换后，无法清除缓存，报3300和3400错误
【据说是缓存问题，可是到底清除哪个缓存？】
目前已尝试删除build的微信文件夹，重新build，cdn也直接换了根目录名字，还有哪里有缓存呢？
creator 版本 2.0.9
VM226:1 Error 3300, please go to https://github.com/cocos-creator/engine/blob/master/EngineErrorMap.md#3300 to see details. Arguments: res/raw-assets/b8/b8c3eeaf-e508-4b85-a8cc-bcbd817f3cf9.png/3, 69, 46
VM226:1 Error 3400, please go to https://github.com/cocos-creator/engine/blob/master/EngineErrorMap.md#3400 to see details. Arguments: res/raw-assets/b8/b8c3eeaf-e508-4b85-a8cc-bcbd817f3cf9.png/3, 67, 40
VM226:1 Error 3400, please go to https://github.com/cocos-creator/engine/blob/master/EngineErrorMap.md#3400 to see details. Arguments: res/raw-assets/05/05a50e18-973c-4420-8d75-caf3ae2b1c72.png/2, 115, 90
VM226:1 Error 3300, please go to https://github.com/cocos-creator/engine/blob/master/EngineErrorMap.md#3300 to see details. Arguments: res/raw-assets/07/07b18343-60f6-41b7-be36-97bea2c3925b.png/hero, 273, 124