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.js

Module 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