npm start 时出错：作者问题答案

【问题标题】：Error while npm start : author issuenpm start 时出错：作者问题
【发布时间】：2018-12-13 17:30:49
【问题描述】：

在命令提示符中启动 npm 时出现错误：

 package.json:
        { 

        "name": "reactapp",
        "version": "1.0.0",
        "description": "",
        "main": "index.js",

        "scripts": {
        "start": "webpack-dev-server --hot",
        },
        "author": "safuwan",
        "license": "ISC",
        "dependencies": {
        "babel-core": "^6.26.3",
        "babel-loader": "^7.1.4",
        "babel-preset-es2015": "^6.24.1",
        "babel-preset-react": "^6.24.1",
        "react": "^16.4.1",
        "react-dom": "^16.4.1",
        "webpack": "^4.14.0",
        "webpack-dev-server": "^3.1.4"
      }
    }

command prompt error image

提前致谢！！

【问题讨论】：

"start": "webpack-dev-server --hot" 之后去掉逗号就可以了。
这里似乎是 json 格式问题，"webpack-dev-server --hot" 之后的逗号，但更好的是你可以在这里输入你得到什么样的错误。

标签： json node.js reactjs package.json npm-start

【解决方案1】：

您的启动脚本中有多余的逗号 (,)。

应该是这样的：

package.json:
        { 

        "name": "reactapp",
        "version": "1.0.0",
        "description": "",
        "main": "index.js",

        "scripts": {
        "start": "webpack-dev-server --hot"
        },
        "author": "safuwan",
        "license": "ISC",
        "dependencies": {
        "babel-core": "^6.26.3",
        "babel-loader": "^7.1.4",
        "babel-preset-es2015": "^6.24.1",
        "babel-preset-react": "^6.24.1",
        "react": "^16.4.1",
        "react-dom": "^16.4.1",
        "webpack": "^4.14.0",
        "webpack-dev-server": "^3.1.4"
      }
    }

【讨论】：