"webpack-dev-server"を実行するとCopyWebpackPluginが失敗する

Question

copy-webpack-plugin私のapp/imagesディレクトリのファイルをpublic/imgのnpm run developmentにコピーしようとしています。しかし、何らかの理由で次のエラーが発生しています。

npm ERR! Darwin 13.4.0 
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "webpack-dev-server" 
npm ERR! node v5.8.0 
npm ERR! npm v3.7.3 
npm ERR! code ELIFECYCLE 
npm ERR! global-gamesey@1.0.0 webpack-dev-server: `NODE_ENV=development PORT=8080 webpack-dev-server --content-base public/ --hot --inline --devtool inline-source-map --history-api-fallback` 
npm ERR! Exit status 1 
npm ERR! 
npm ERR! Failed at the global-gamesey@1.0.0 webpack-dev-server script 'NODE_ENV=development PORT=8080 webpack-dev-server --content-base public/ --hot --inline --devtool inline-source-map --history-api-fallback'. 
npm ERR! Make sure you have the latest version of node.js and npm installed. 
npm ERR! If you do, this is most likely a problem with the global-gamesey package, 
npm ERR! not with npm itself. 
npm ERR! Tell the author that this fails on your system: 
npm ERR!  NODE_ENV=development PORT=8080 webpack-dev-server --content-base public/ --hot --inline --devtool inline-source-map --history-api-fallback 
npm ERR! You can get information on how to open an issue for this project with: 
npm ERR!  npm bugs global-gamesey 
npm ERR! Or if that isn't available, you can get their info via: 
npm ERR!  npm owner ls global-gamesey 
npm ERR! There is likely additional logging output above. 

npm ERR! Please include the following file with any support request: 
npm ERR!  /Users/travis.tb/git/global-gamesey/npm-debug.log 

npm ERR! Darwin 13.4.0 
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "development" 
npm ERR! node v5.8.0 
npm ERR! npm v3.7.3 
npm ERR! code ELIFECYCLE 
npm ERR! global-gamesey@1.0.0 development: `cp views/index.html public/index.html && NODE_ENV=development webpack && npm run webpack-dev-server` 
npm ERR! Exit status 1 
npm ERR! 
npm ERR! Failed at the global-gamesey@1.0.0 development script 'cp views/index.html public/index.html && NODE_ENV=development webpack && npm run webpack-dev-server'. 
npm ERR! Make sure you have the latest version of node.js and npm installed. 
npm ERR! If you do, this is most likely a problem with the global-gamesey package, 
npm ERR! not with npm itself. 
npm ERR! Tell the author that this fails on your system: 
npm ERR!  cp views/index.html public/index.html && NODE_ENV=development webpack && npm run webpack-dev-server 
npm ERR! You can get information on how to open an issue for this project with: 
npm ERR!  npm bugs global-gamesey 
npm ERR! Or if that isn't available, you can get their info via: 
npm ERR!  npm owner ls global-gamesey 
npm ERR! There is likely additional logging output above. 

npm ERR! Please include the following file with any support request: 
npm ERR!  /Users/travis.tb/git/global-gamesey/npm-debug.log 

なぜスクリプトが失敗しますか？私のwebpack.configファイルには、次の行が含まれています：

// webpack.config.js 
var webpack = require('webpack') 
//copy files 
var CopyWebpackPlugin = require('copy-webpack-plugin'); 
var path = require('path'); 

if(process.env.NODE_ENV === 'development'){ 
    var loaders = ['react-hot','babel'] 
} else { 
    var loaders = ['babel'] 
} 
module.exports = { 
    devtool: 'eval', 
    entry: './app-client.js', 
    output: { 
    path: __dirname + '/public/dist', 
    filename: 'bundle.js', 
    publicPath: '/dist/' 
    }, 
    module: { 
    loaders: [{ 
     test: /\.js$/, 
     loaders: loaders, 
     exclude: /node_modules/ 
    }, 
    { 
    test: /\.scss$/, 
    loaders: ["style", "css", "sass"] 
    } 
    ]}, 
    plugins: [ 
    new webpack.DefinePlugin({ 
     'process.env.COSMIC_BUCKET': JSON.stringify(process.env.COSMIC_BUCKET) 
    }), 
    new CopyWebpackPlugin([ 
     { from: '/images/', to: '/public/img/' } 
    ]) 
] 
}; 

私が間違っていることはありますか？私はGulpの観点から来ているので、webpackがこの単純な作業を本当に奇妙に扱う方法を見いだしています。

Answer 1

CopyWebpackPlugin文書には、「webpack.config.js」構成ファイルに次のエントリを追加する必要があることが記載されています。

`

... 
devServer: { 
    // This is required for webpack-dev-server. The path should 
    // be an absolute path to your build destination. 
    outputPath: path.join(__dirname, 'build') 
}, 
...`