uniapp 打包出现白屏，报错误
reportJSException >>>> exception function:createInstanceContext, exception:white screen cause create instanceContext failed,check js stack ->Uncaught TypeError: Cannot read property 'childNodes' of undefined
at (app-service.js:296704:154)
at __webpack_require__ (app-service.js:80:30)
at (app-service.js:296430:14)
at __webpack_require__ (app-service.js:80:30)
at (app-service.js:296395:13)
at __webpack_require__ (app-service.js:80:30)
at (app-service.js:296051:15)
at __webpack_require__ (app-service.js:80:30)
at (app-service.js:297009:15)
at __webpack_require__ (app-service.js:80:30)
