Error: spawn EPERM HELP!

Hi every one, when i add a platform or when I run ionic emulate ios appears every time this error:

Error: spawn EPERM
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:188:23)
at runScript (/usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/hooks/HooksRunner.js:131:16)
at /usr/local/lib/node_modules/cordova/node_modules/cordova-lib/src/hooks/HooksRunner.js:114:20
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)

Any ideas about it? How can I solve this problem? thanks

# ionic hooks add

You run this command before?