extract-text-webpack-plugin 打包css报错的解决
全局安装的webpack版本是v4.12.1,但是package.json引用的webpack版本是v3.6.0,install下来/node_modules/里面webpack版本是v3.12.0。
在控制台输入webpack -v,得到的结果是4.12.1。
这是webpack环境。
开始引入extract-text-webpack-plugin,默认的版本是v3.0.2,运行webpack报错:
$ webpack (node:18800) DeprecationWarning: Tapable.plugin is deprecated. Use new API on `.hooks` instead C:\Users\EEE\AppData\Roaming\npm\node_modules\webpack\lib\Chunk.js:752 throw new Error( ^ Error: Chunk.entrypoints: Use Chunks.groupsIterable and filter by instanceof Entrypoint instead
找了很多文章,都说是版本问题,下载了extract-text-webpack-plugin 4.0.0-beta.0版本,运行还是报错:
$ webpack C:\Users\EEE\Desktop\webpack\node_modules\[email protected]@extract-text-webpack-plugin\dist\index.js:217 extractedChunk.addGroup(chunkGroup); ^ TypeError: extractedChunk.addGroup is not a function
猜想会不会是webpack版本也需要升级,我删掉了package.json引用的webpack,打算使用全局webpack。
重新install,运行webpack,还是报错:
$ webpack C:\Users\EEE\AppData\Roaming\npm\node_modules\webpack-cli\bin\cli.js:244 throw err; ^ Error: Cannot find module 'webpack/lib/Chunk'
似乎必须要引入webpack,在package.json再次引webpack,v4.12.0。
得到的/node_modules/下的webpack版本是v4.26.1。
再次执行webpack,这次成功了。
这是一次很简单的采坑,但是前后困扰了我好几天。
附配置文件:
webpack.config.js
const path = require('path'); const ExtractTextPlugin = require("extract-text-webpack-plugin"); module.exports = { entry: './src/index.js', output: { path: path.resolve(__dirname, 'dist'), publicPath: '/dist/', filename: 'bundle.js' }, mode: 'production', module: { rules: [ { test: /\.css$/, //loader: ['style-loader','css-loader'] use: ExtractTextPlugin.extract({ fallback: "style-loader", use: "css-loader" }) }, { test: /\.(png|jpe?g|gif|svg)(\?.*)?$/, loader: 'url-loader', options: { limit: 10000*4, name: '[name].[ext]?[hash]' } } ] }, plugins: [ new ExtractTextPlugin("styles.css"), ] };
package.json
{ "devDependencies": { "css-loader": "^0.28.7", "extract-text-webpack-plugin": "^4.0.0-beta.0", "file-loader": "^1.1.4", "style-loader": "^0.23.1", "url-loader": "^0.5.8", "webpack": "^4.12.0" } }
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