yarn的安装和卸载

npm install -g yarn
npm uninstall yarn -g //yarn卸载

本机的element-plus版本

"element-plus": "2.0.1",

想要切换的element-plus版本

由于我需要用到树型选择，所以需要升级到2.1.8

用npm卸载element-plus时报如下错误

npm uninstall element-plus

npm ERR! code ERESOLVE
npm ERR! ERESOLVE could not resolve
npm ERR!
npm ERR! While resolving: @vueup/vue-quill@1.1.0
npm ERR! Found: vue@3.2.26
npm ERR! node_modules/vue
npm ERR!   peer vue@"^3.2.0" from @element-plus/icons-vue@0.2.6
npm ERR!   node_modules/@element-plus/icons-vue
npm ERR!     @element-plus/icons-vue@"^0.2.6" from element-plus@2.0.1
npm ERR!     node_modules/element-plus
npm ERR!     @element-plus/icons-vue@"0.2.6" from the root project
npm ERR!   peer vue@"^3.0.0" from @vant/use@1.5.1
npm ERR!   node_modules/@vant/use
npm ERR!     @vant/use@"^1.5.1" from vant@4.3.1
npm ERR!     node_modules/vant
npm ERR!       vant@"^4.1.0" from the root project
npm ERR!   20 more (@vue/server-renderer, @wangeditor/editor-for-vue, ...)
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer vue@"^3.2.41" from @vueup/vue-quill@1.1.0
npm ERR! node_modules/@vueup/vue-quill
npm ERR!   @vueup/vue-quill@"^1.0.0-alpha.40" from the root project
npm ERR!
npm ERR! Conflicting peer dependency: vue@3.2.47
npm ERR! node_modules/vue
npm ERR!   peer vue@"^3.2.41" from @vueup/vue-quill@1.1.0
npm ERR!   node_modules/@vueup/vue-quill
npm ERR!     @vueup/vue-quill@"^1.0.0-alpha.40" 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!
npm ERR! For a full report see:
npm ERR! C:\Users\35725\AppData\Local\npm-cache\_logs\2023-05-11T01_46_05_707Z-eresolve-report.txt

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\35725\AppData\Local\npm-cache\_logs\2023-05-11T01_46_05_707Z-debug-0.log