新配的webpack，什么也没安装我不明白为啥失败了

Question

就自己在研究webpack,啥也没装，用webpack打包报错，各种版本各种插件各种报错，真难用
说我mode不行，那我把它去了，又报

{
  "name": "webpack_development",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "css-loader": "^3.4.2",
    "file-loader": "^2.0.0",
    "html-loader": "^0.5.5",
    "html-webpack-plugin": "^3.2.0",
    "less": "^4.1.2",
    "less-loader": "^5.0.0",
    "mini-css-extract-plugin": "^0.9.0",
    "style-loader": "^1.1.3",
    "url-loader": "^4.1.1",
    "webpack": "^4.44.2cd ",
    "webpack-cli": "^4.9.2",
    "webpack-dev-server": "^4.7.4"
  }
}