Use NSURLIsExcludedFromBackupKey without crashing on iOS 5.0

Question

The check for availability seems to be working fine but I can\'t seem to set the NSURLIsExcludedFromBackupKey key without getting this crash on launch:

Answer 1

Depending on what you're doing, this quick fix may work for you. It did for me.

Add the CoreFoundation framework to your project and mark it as OPTIONAL (not required).