「ionic platform add ios」で「spawn EACCES」エラーが発生した

ionicプロジェクトを作ってios platformを追加した時「spawn EACCES」エラーが発生した。

$ ionic start TestApp sidemenu
$ cd TestApp
$ ionic platform add ios
Downloading Default Ionic Resources

Downloading: https://github.com/driftyco/ionic-default-resources/archive/master.zip
[=============================]  100%  0.0s
Done adding default Ionic resources
Adding icons for platform: ios
running cordova platform add ios
npm http GET https://registry.npmjs.org/cordova-ios/3.8.0
npm http 200 https://registry.npmjs.org/cordova-ios/3.8.0
npm http GET https://registry.npmjs.org/cordova-ios/-/cordova-ios-3.8.0.tgz
npm http 200 https://registry.npmjs.org/cordova-ios/-/cordova-ios-3.8.0.tgz
Adding ios project...
iOS project created with cordova-ios@3.8.0
Running command: /Users/babukuma/Documents/Workspace/TestApp/hooks/after_prepare/010_add_platform_class.js /Users/babukuma/Documents/Workspace/CompassJapan
Error: spawn EACCES
    at exports._errnoException (util.js:746:11)
    at ChildProcess.spawn (child_process.js:1162:11)
    at Object.exports.spawn (child_process.js:995:9)
    at Object.exports.spawn (/usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/cordova/superspawn.js:100:31)
    at runScriptViaChildProcessSpawn (/usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/hooks/HooksRunner.js:189:23)
    at runScript (/usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/hooks/HooksRunner.js:132:16)
    at /usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/hooks/HooksRunner.js:115:20
    at _fulfilled (/usr/local/lib/node_modules/cordova/node_modules/q/q.js:787:54)
    at self.promiseDispatch.done (/usr/local/lib/node_modules/cordova/node_modules/q/q.js:816:30)
    at Promise.promise.promiseDispatch (/usr/local/lib/node_modules/cordova/node_modules/q/q.js:749:13)

調べて見つかった解決策はのは「ionic hooks add」をする事。情報元はhttp://forum.ionicframework.com/t/add-ios-error/20262/7

$ionic platform remove ios
$ionic hooks add 
$ionic platform ios

これでエラーなしでios platformが追加された。