项目场景：

前端vue3项目需要安装element-ui

问题描述

npm安装element-ui报错

npm i element-ui -S

报错

D:javascriptfund-managementprojectsnode-demonode-vue-ele-appclient>npm i element-ui -S
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: client@0.1.0
npm ERR! Found: vue@3.2.32
npm ERR! node_modules/vue
npm ERR!   vue@"^3.2.13" from the root project     
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer vue@"^2.5.17" from element-ui@2.15.8 
npm ERR! node_modules/element-ui
npm ERR!   element-ui@"*" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!
npm ERR! See C:UsersThinkPadAppDataLocalnpm-cacheeresolve-report.txt for a full report.    

npm ERR! A complete log of this run can be found in:
npm ERR!     C:UsersThinkPadAppDataLocalnpm-cache_logs2022-04-14T03_03_41_897Z-debug-0.log

原因分析：

element-plus不适配vue3，官方已将vue3版本的更新为element-plus

链接: element-plus说明文档.

解决方案：

安装

npm install element-plus --save

引入

import { createApp } from 'vue'
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
import App from './App.vue'

const app = createApp(App)

app.use(ElementPlus)
app.mount('#app')

最后

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