Vue3报错：Module build failed (from ./node_modules/vue-loader/dist/index.js):TypeError:

报错：

Module build failed (from ./node_modules/vue-loader/dist/index.js):TypeError: Cannot read properties of null (reading 'content')

翻译：模块构建失败(from ./node_modules/vue-loader/dist/index.js):TypeError:无法读取null属性(读取'content')

 模组报错，多半因为重复声明组件报错，

解决方案：

<script setup >
import Message from '@/components/library/Message';
<script/>

<script >
import Message from '@/components/library/Message'; // 重复声明！！
<script/>