Webpack - extract-text-webpack-plugin无法找到模块

Question

webpack.config.js

var ExtractTextPlugin = require("extract-text-webpack-plugin");

如果我只是实现插件,我会立即收到此错误:

module.js:339
    throw err;
    ^

Error: Cannot find module 'webpack/lib/ConcatSource'
    at Function.Module._resolveFilename (module.js:337:15)
    at Function.Module._load (module.js:287:25)
    at Module.require (module.js:366:17)
    at require (module.js:385:17)
    at Object.<anonymous> (/Users/lucamormile/Documents/Lavori/Webapps/React/webpack_test/node_modules/extract-text-webpack-plugin/index.js:5:20)
    at Module._compile (module.js:425:26)
    at Object.Module._extensions..js (module.js:432:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Module.require (module.js:366:17)

我忘记了什么？

Answer 1

webpack你的项目有模块吗？
如果没有,请在本地安装(不是全局):

$ npm install webpack [--save-dev]

extract-text-webpack-plugin需要webpack作为对等依赖项,但是npm 3不会自动安装对等依赖项.

Answer 2

您可以尝试使用我在https://www.npmjs.com/package/extract-text-webpack-plugin上找到的命令

npm i extract-text-webpack-plugin