记录装webpack遇到的坑

webpack和webpack-cli是分离的，需要分别安装

这种情况把webpack-cli全局卸载后，再安装

npm install webpack-cli -g --save-dev

npm install webpack-cli -D;

需要把给定目录里的文件手动删除之后再重新全局安装，多看错误提示信息

以下是package.json的内容

{
  "name": "webp",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "dependencies": {
    "webpack-dev-server": "^3.1.4"
  },
  "devDependencies": {
    "webpack": "^4.16.0",
    "webpack-cli": "^3.0.8",
    "webpack-command": "^0.4.1"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "webpack",
    "server": "webpack-dev-server --open"
  },
  "author": "",
  "license": "ISC"
}

以下是webpack.config.js的内容

module.exports = {
	 devtool: 'eval-source-map',
  entry:  __dirname + "/app/main.js",//已多次提及的唯一入口文件
  output: {
    path: __dirname + "/public",//打包后的文件存放的地方
    filename: "bundle.js",//打包后输出文件的文件名
  },
   devServer: {
    contentBase: "./public",//本地服务器所加载的页面所在的目录
    historyApiFallback: true,//不跳转
    inline: true//实时刷新
  } 
}

devserver里不要写colors=true，出错了一定要看报错信息。