Ionic start myApp blank not working

please help me . i use ionic start myApp blank and this is not working

$ ionic start myApp blank
Creating Ionic app in folder c:\Users\Karimi\Desktop\myApp based on blank projec
t
Downloading: https://github.com/driftyco/ionic-app-base/archive/master.zip
Error Initializing app:  Error: getaddrinfo EAI_AGAIN
    at Object.exports._errnoException (util.js:746:11)
    at errnoException (dns.js:49:15)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:94:26)

Error: getaddrinfo EAI_AGAIN
    at Object.exports._errnoException (util.js:746:11)
    at errnoException (dns.js:49:15)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:94:26)

getaddrinfo EAI_AGAIN (CLI v1.6.1)

Your system information:

Cordova CLI: 5.1.1
Ionic CLI Version: 1.6.1
Ionic App Lib Version: 0.3.3
OS: Windows 7 SP1
Node Version: v0.12.7

EAI_AGAIN
at errnoException (dns.js:49:15)

Me parece mais com conexão expirada com o git do que problemas com instalação do ionic ou algo do tipo.
Já tentou novamente?

This is probably problem with your internet connection, basically your connection has timed out.