npm run dev报错看不太懂

Question

huangmindeMacBook-Pro:9detail页面完成 huangmin$ npm run dev> vueproject@1.0.0 dev /Users/huangmin/Downloads/项目：Vue搭建课程首页/源码/9detail页面完成/9detail页面完成> webpack-dev-server --inline --progress --config build/webpack.dev.conf.js 10% 10 10% bu 10% build 10% build 10% build 10% build 10% build 11% build 11% build 11% 11% b 11%   12% 12% 12 12 12% 13% 13% 13% 94% after seal                                                                 ERROR  Failed to compile with 1 errors                                                           09:47:20 error  in ./src/main.jsModule build failed (from ./node_modules/babel-loader/lib/index.js):Error: Plugin/Preset files are not allowed to export objects, only functions. In /Users/huangmin/Downloads/项目：Vue搭建课程首页/源码/9detail页面完成/9detail页面完成/node_modules/babel-preset-stage-2/lib/index.js    at createDescriptor (/Users/huangmin/node_modules/@babel/core/lib/config/config-descriptors.js:178:11)    at items.map (/Users/huangmin/node_modules/@babel/core/lib/config/config-descriptors.js:109:50)    at Array.map (<anonymous>)    at createDescriptors (/Users/huangmin/node_modules/@babel/core/lib/config/config-descriptors.js:109:29)    at createPresetDescriptors (/Users/huangmin/node_modules/@babel/core/lib/config/config-descriptors.js:101:10)    at presets (/Users/huangmin/node_modules/@babel/core/lib/config/config-descriptors.js:47:19)    at mergeChainOpts (/Users/huangmin/node_modules/@babel/core/lib/config/config-chain.js:315:26)    at /Users/huangmin/node_modules/@babel/core/lib/config/config-chain.js:278:7    at buildRootChain (/Users/huangmin/node_modules/@babel/core/lib/config/config-chain.js:118:22)    at loadPrivatePartialConfig (/Users/huangmin/node_modules/@babel/core/lib/config/partial.js:85:55)    at Object.loadPartialConfig (/Users/huangmin/node_modules/@babel/core/lib/config/partial.js:110:18)    at Object.<anonymous> (/Users/huangmin/Downloads/项目：Vue搭建课程首页/源码/9detail页面完成/9detail页面完成/node_modules/babel-loader/lib/index.js:140:26)    at Generator.next (<anonymous>)    at asyncGeneratorStep (/Users/huangmin/Downloads/项目：Vue搭建课程首页/源码/9detail页面完成/9detail页面完成/node_modules/babel-loader/lib/index.js:3:103)    at _next (/Users/huangmin/Downloads/项目：Vue搭建课程首页/源码/9detail页面完成/9detail页面完成/node_modules/babel-loader/lib/index.js:5:194)    at /Users/huangmin/Downloads/项目：Vue搭建课程首页/源码/9detail页面完成/9detail页面完成/node_modules/babel-loader/lib/index.js:5:364 @ multi (webpack)-dev-server/client?http://localhost:8081 (webpack)/hot/dev-server.js ./src/main.js

Answer 1

看错误提示 “error  in ./src/main.js”可以去看看main.js文件有没有什么问题