Sandboxed Cocoa Application Groups
===

The entitlement documentation describes a method in which [multiple apps produced by a single development team can share access to a special group container][1]

I've added the entitlement key to a main application and a helper application that is included in the main application bundle. The group directory is never created, and the method in which to get the path – `[NSURL containerURLForSecurityApplicationGroupIdentifier:]` – doesn't actually exist in any header.

What am I missing to create a shared group container?


  [1]: http://developer.apple.com/library/mac/#documentation/Miscellaneous/Reference/EntitlementKeyReference/Chapters/EnablingAppSandbox.html#//apple_ref/doc/uid/TP40011195-CH4-SW19