老师为什么我执行失败了。

{
  "name": "webpack2",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "webpack":"webpack"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "webpack": "^4.44.1",
    "webpack-cli": "^3.3.12"
  }
}

const path = require('path');

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js',
  },
};