如何通过npm启动webpack开发服务器？

Question

我正在尝试通过npm运行webpack-dev-server，但它没有启动。但是，当我直接运行命令时，它正在正确启动开发服务器。

当我运行npm start或npm run start（与package.json文件位于同一文件夹中）时，什么也没发生（没有错误消息-该命令仅返回）。当我运行webpack-dev-server --open --config webpack/webpack.config.dev.js时，服务器启动正常。

我已经跑过npm install。我的npm版本在MacOS上是6.13.4。

我的package.json文件如下：

{
  "name": "webpack-starter",
  "version": "1.0.0",
  "description": "A light foundation for your next frontend project based on webpack.",
  "scripts": {
    "build": "cross-env NODE_ENV=production webpack --config webpack/webpack.config.prod.js --colors",
    "start": "webpack-dev-server --open --config webpack/webpack.config.dev.js"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/wbkd/webpack-starter.git"
  },
  "keywords": [
    "webpack",
    "startkit",
    "frontend",
    "es6",
    "javascript",
    "webdev"
  ],
  "author": "webkid.io",
  "license": "MIT",
  "bugs": {
    "url": "https://github.com/wbkd/webpack-starter/issues"
  },
  "devDependencies": {
    "@babel/core": "^7.9.0",
    "@babel/plugin-proposal-class-properties": "^7.8.3",
    "@babel/plugin-syntax-dynamic-import": "^7.8.3",
    "@babel/preset-env": "^7.9.0",
    "babel-loader": "^8.1.0",
    "clean-webpack-plugin": "^3.0.0",
    "copy-webpack-plugin": "^5.1.1",
    "cross-env": "^7.0.2",
    "css-loader": "^3.4.2",
    "eslint": "^6.8.0",
    "eslint-loader": "^3.0.4",
    "file-loader": "^5.1.0",
    "html-webpack-plugin": "^4.0.4",
    "mini-css-extract-plugin": "^0.9.0",
    "node-sass": "^4.13.1",
    "sass-loader": "^8.0.2",
    "style-loader": "^1.1.3",
    "webpack": "^4.42.1",
    "webpack-cli": "^3.3.11",
    "webpack-dev-server": "^3.10.3",
    "webpack-merge": "^4.2.2"
  },
  "dependencies": {
    "@babel/polyfill": "^7.8.7",
    "core-js": "^3.6.4"
  }
}