关于javascript:报错集

一、vue3创立我的项目下载element依赖报错 npm ERR code ERESOLVE

PS C:\Users\PC\Desktop\我的项目\toutiao-publish-admin> npm i element-ui -S
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: toutiao-publish-admin@0.1.0
npm ERR! Found: vue@3.2.37
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@2.15.9
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:\Users\PC\AppData\Local\npm-cache\eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\PC\AppData\Local\npm-cache\_logs\2022-06-14T08_17_22_528Z-debug.log

解决：重复下载依赖报错，应该是npm版本的问题

npm i element-ui -S --legacy-peer-deps

vue3中引入elementUI，和vue2不同

vue add element-plus

import { createApp } from 'vue'
import ElementPlus from 'element-plus';
import 'element-plus/lib/theme-chalk/index.css';
import App from './App.vue';
 
const app = createApp(App)
app.use(ElementPlus)

应用和和element-ui一样