vue-element-admin第一次运行报错

Question

npm运行vue-element-admin报错：

> vue-element-admin@4.4.0 dev
> vue-cli-service serve

 INFO  Starting development server...
98% after emitting CopyPlugin

 ERROR  Failed to compile with 1 error                                                                                                                                                     下午5:22:04
 error  in ./src/main.js

Syntax Error: Error: [BABEL] E:\testCode\vue-element-admin-master\src\main.js: Failed to resolve "@babel/runtime" relative to "E:\testCode\vue-element-admin-master\node_modules\_@babel_runtime@7.15.4@@babel\runtime" (While processing: "E:\\testCode\\vue-element-admin-master\\node_modules\\_@vue_cli-plugin-babel@4.4.4@@vue\\cli-plugin-babel\\preset.js.overrides[0]$4")
    at Generator.next (<anonymous>)
    at Generator.next (<anonymous>)
    at Generator.next (<anonymous>)


 @ multi ./node_modules/_webpack-dev-server@3.11.2@webpack-dev-server/client?http://192.168.5.40:9527&sockPath=/sockjs-node ./node_modules/_webpack@4.46.0@webpack/hot/dev-server.js ./src/main.js    
./src/main.js

第一次运行项目，天啊，我快被逼疯了，一直报错！！！一直改！！！眼看就要胜利了，结果又报错了，求大神指教，感谢~
还有个小问题，思否为什么图片上传不了，还是对图片上传的大小有限制？