javascript - Webpack fails to build ES6 in external packages -


i'm trying use es6 npm package (in case 1 called gamesystem) in project , build webpack (and babel) fails build es6 code inside external dependency, why that? if have same code dependency relative path works fine.

app code:

'use strict';  import world 'gamesystem'; // breaks //import world '../node_modules/gamesystem'; // breaks //import world '../gamesystem'; // works (copied same directory gamesystem outside node_modules directory)  let world = new world();

error:

error in ./~/gamesystem/world.js module parse failed: /home/user/project/node_modules/gamesystem/world.js line 3: unexpected token may need appropriate loader handle file type. | 'use strict'; |  | import system './system'; |  | export default class world {  @ ./src/app.js 3:18-39

webpack config:

'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;

you're explicitly excluding node_modules babel-loader:

exclude: /node_modules/,

you'll need tweak if want pass modules node_modules through babel. might consider explicit includes this:

// sure req path // var path = require('path')  include: [   // include app path   path.resolve(__dirname, 'my-app-js-path'),    // include gamesystem modules   /\bgamesystem\b/, ],

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