I have a problem with vueJs webpack, I want to run on the server, with a command: npm run dev. But I get some error message as below.

Could anyone tell me how do I solve it?? Thank you very much!

Error message

npm ERR! code EJSONPARSE

npm ERR! Failed to parse json

npm ERR! Unexpected token / while parsing '{

npm ERR! name: vue-loader-demo,

npm ERR! versio'

npm ERR! File: /Users/sylvia/Documents/FE/Practice/vue/vue-loader-

demo/package.json

npm ERR! Failed to parse package.json data.

npm ERR! package.json must be actual JSON, not just JavaScript.

npm ERR!
npm ERR! Tell the package author to fix their package.json file.

JSON.parse

npm ERR! A complete log of this run can be found in:

npm ERR! /Users/sylvia/.npm/_logs/2018-04-17T12_39_56_372Z-debug.log

Here is the package.json

{

 name: vue-loader-demo,

 version: 1.0.0,

 description: ,

 main: main.js,

 scripts: {

    build: webpack,

    dev: webpack-dev-server --devtool eval --progress --colors --hot 

  },

  author: ,

  license: ISC,

  dependencies: {

    webpack: ^4.5.0,

    webpack-dev-server: ^3.1.3

  }

}

webpack.config.js

module.exports={

entry:'./main.js',

output:{

 path:_dirname，



 filename:‘'bundle.js'’

}
}

File structure

|-index.html

|-main.js

|-App.vue

|-package.json

|-webpack.config.js