I\'m running some code that does a [NSDictionary objectForKeyedSubscript:] and it\'s crashing on iOS 5, but not iOS 6. I am using xcode 4.5.2 and compiling against the iOS
There is a workaround for pre-iOS6 SDKs
Checkout question here: Is there any way to get the neat Objective-C literal indexing feature in Xcode 4.4?