t is not a constructor

[Lbt777]

bug情况：  在Debug模式下是好的，但是一发布就不行。 eui.min_7b291ad4.js:1 Uncaught TypeError: t is not a constructor at i.onExmlLoaded (eui.min_7b291ad4.js:1:26893) at a (eui.min_7b291ad4.js:6:6175) at n (eui.min_7b291ad4.js:6:6282) at Object. (eui.min_7b291ad4.js:1:9192) at e. (main.min_bb41d5be.js:1:23643) at i.callLaters (egret.min_3a39dfa6.js:4:18429) at i.render (egret.min_3a39dfa6.js:4:17620) at i.update (egret.min_3a39dfa6.js:4:17415) at t (egret.web.min_d2f51c7d.js:2:18911)