코르도바&아이오닉 퍼미션 주기
sudo chown -R $USER:$GROUP ~/.npm
sudo chown -R $USER:$GROUP ~/.config
https://forum.ionicframework.com/t/ionic-emulate-ios-not-working-error-eacces-permission-denied-open-users-abimunoz-config-configstore-insight-cordova-json/53246