之前用1.10的版本打包出来的微信小游戏包可以直接在头条游戏上跑，今天升级到2.0.9后，在开发者工具上可以跑，到真机上就报错：
/tmg-core.js:1 [TMA][ERROR][RUNTIME] thirdScriptError
tt.setPreferredFramesPerSecond is not a function
TypeError: tt.setPreferredFramesPerSecond is not a function
at Object.cc.game.setFrameRate (/game.js:8992:8)
at s._super.onLoad (/game.js:986:17)
at u (/game.js:9266:409415)
at s._super._invoke (/game.js:9266:213944)
at s._super.invoke (/game.js:9266:213110)
at s._super.activateNode (/game.js:9266:411221)
at s._super._activate (/game.js:9266:164258)
at 27.cc.Director.runSceneImmediate (/game.js:9266:123019)
怎么搞？