[英]Webpack fails to build ES6 in external packages
我正在尝试在项目中使用ES6 npm包(在这种情况下称为游戏系统),并使用webpack(和babel)进行构建,但无法在外部依赖项中构建任何ES6代码,这是为什么? 如果我具有与具有相对路径的依赖项相同的代码,则可以正常工作。
应用程式码:
'use strict';
import World from 'gamesystem'; // Breaks
//import World from '../node_modules/gamesystem'; // Also breaks
//import World from '../gamesystem'; // Works (copied the same directory gamesystem outside the node_modules directory)
let world = new World();
错误:
ERROR in ./~/gamesystem/World.js
Module parse failed: /home/user/project/node_modules/gamesystem/World.js Line 3: Unexpected token
You may need an appropriate loader to handle this file type.
| 'use strict';
|
| import System from './System';
|
| export default class World {
@ ./src/app.js 3:18-39
Webpack配置:
'use strict';
// Modules
let WebpackNotifierPlugin = require('webpack-notifier');
let HtmlWebpackPlugin = require('html-webpack-plugin');
let config = {
entry: {
app: __dirname + '/../src/app.js'
},
devtool: 'source-map',
devServer: {
stats: {
modules: false,
cached: false,
colors: true,
chunk: false
},
proxy: require('./devProxy')
},
module: {
loaders: [{
test: /\.js$/,
loader: 'babel',
exclude: /node_modules/,
query: {
presets: ['es2015', 'stage-0']
}
},
{
test: /\.css$/,
loader: 'style!css'
},
{
test: /\.html$/,
loader: 'raw'
}]
},
plugins: [
new WebpackNotifierPlugin(),
new HtmlWebpackPlugin({
template: __dirname + '/../src/index.html',
inject: 'body',
minify: false
})
]
};
module.exports = config;
您从babel-loader
明确排除了node_modules
:
exclude: /node_modules/,
如果要通过babel从node_modules
传递模块,则需要进行调整。 您可能会考虑像这样的显式包含:
// be sure to req path
// var path = require('path')
include: [
// Include everything from your app path
path.resolve(__dirname, 'my-app-js-path'),
// Include gamesystem modules
/\bgamesystem\b/,
],
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