Following the tutorial but can't get meteor run ios to work

I’m following along in the tutorial but I can’t get Meteor to build an iOS app.

$ meteor run ios   
Xcode 4.6 or greater is required to run iOS commands.

But I’m running Xcode Version 6.2 (6C131e)

I’ve compiled Cordova apps in the past using PhoneGap so it’s very likely something related to my configuration but I have no idea where to start and why Meteor’s cordova implementation thinks I have an old version of Xcode.

Any help would be greatly appreciated. Thanks!