Element type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got undefined

原因就是组件引入错误，应该是

import {BillReverse} form '../xx'

写成了

import Reverse from '../xx'

两个错误

1. 没写大括号

2. 组件名错误

如何从打包后的文件分析导出内容格式，待解决

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components composite for undefined expectedcomponents composite for undefined prop undefined expected invalid undefined数据v-for for composite composition compositionality springsecurity configuration composition annotation architecture composite vdm layering compositionality measuring narrowing language composite structure pattern class