私のreactJSアプリケーション用にwebpackとnpmでファイルをコンパイルしようとしています。私が走っているとき：
npm install --save react-websocket
その正常に動作します。次に私が実行しているとき
npm start
次のエラーが発生します。
> reactapp@1.0.0 start D:\ReactServer
> webpack-dev-server --hot
'webpack-dev-server' is not recognized as an internal or external command,
operable program or batch file.
npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\
node_modules\\npm\\bin\\npm-cli.js" "start"
npm ERR! node v4.4.7
npm ERR! npm v2.15.8
npm ERR! code ELIFECYCLE
npm ERR! reactapp@1.0.0 start: `webpack-dev-server --hot`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the reactapp@1.0.0 start script 'webpack-dev-server -- hot'.
npm ERR! This is most likely a problem with the reactapp package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! webpack-dev-server --hot
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs reactapp
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!
npm ERR! npm owner ls reactapp
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! D:\ReactServer\npm-debug.log
誰でもこれで私を助けることができますか?