webpack-log.md

Q&A

• 一开始使用 $ npm install webpack -g 把 Webpack 已经安装到了全局环境下，运行webpack 命令，但出现了以下错误

    ```js
    PS F:\Daily-note\webpack\first-webpack> webpack
    module.js:442
        throw err;
        ^
  
    Error: Cannot find module 'webpack/lib/node/NodeTemplatePlugin'
        at Function.Module._resolveFilename (module.js:440:15)
        at Function.Module._load (module.js:388:25)
        at Module.require (module.js:468:17)
        at require (internal/module.js:20:19)
        at Object.<anonymous> (F:\Daily-note\webpack\first-webpack\node_modules\html-webpack-plugin\lib\com
        at Module._compile (module.js:541:32)
        at Object.Module._extensions..js (module.js:550:10)
        at Module.load (module.js:458:32)
        at tryModuleLoad (module.js:417:12)
        at Function.Module._load (module.js:409:3)
        at Module.require (module.js:468:17)
        at require (internal/module.js:20:19)
        at Object.<anonymous> (F:\Daily-note\webpack\first-webpack\node_modules\html-webpack-plugin\index.j
        at Module._compile (module.js:541:32)
        at Object.Module._extensions..js (module.js:550:10)
        at Module.load (module.js:458:32)
    ```
  

  原因是因为Webpack没有安装到项目的依赖中 使用$ npm install webpack --save-dev就搞定了

  //全局安装
  npm install -g webpack
  //安装到你的项目目录
  npm install --save-dev webpack

• 使用npm install sass-loader --save-dev，增加scss文件，npm start但是出现了一下错误

  ERROR in Cannot find module 'node-sass'
  @ ./app/main.scss 4:14-115 13:2-17:4 14:20-121

  原因是缺少了node-sass，使用npm i node-sass —save-dev就搞定了