Q：运行 npm run dev 报错，查了很久找不到解决办法，求助论坛的前辈们~

第一次用 webpack，配置好后运行 npm run dev 结果报错了，在网上搜了很多资料都无法解决，求前辈们指点以下！不胜感激！！

报错内容
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


package.js

{
"name": "vue-loader-demo",
"version": "1.0.0",
"description": "",
"main": "main.js",
"scripts": {
"build": "webpack",
"dev": "webpack-dev-server --devtool eval --progress --colors --hot" //意思是自动刷新屏幕
},
"author": "",
"license": "ISC",
"dependencies": {
"webpack": "^4.5.0",
"webpack-dev-server": "^3.1.3"
}
}

文件结构


|-index.html

|-main.js

|-App.vue

|-package.json

|-webpack.config.js