一、npm i 版本兼容问题 

pm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: vueproject&＃64;1.0.0
npm ERR! Found: webpack&＃64;3.12.0
npm ERR! node_modules/webpack
npm ERR!   dev webpack&＃64;"^3.6.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer webpack&＃64;"^5.0.0" from style-loader&＃64;3.3.1
npm ERR! node_modules/style-loader
npm ERR!   style-loader&＃64;"^3.3.1" from the root project

解决方法&＃xff1a;

npm i --legacy-peer-deps

二、报错问题二

Cannot read properties of null (reading ‘pickAlgorithm‘)

解决方法

1、输入npm cache clear --force 清楚缓存
2、缓存清理后&＃xff0c;再次输入npm i 下载安装包
3、最后&＃xff0c;运行npm run serve 启动项目