Development exception information for versions earlier than ios6.0: reason: 'Could not instantiate class named nslayoutconstraint'

New Features of ios6: auto layout attribute. This attribute is only available for ios6 and later versions;

Exception message during running of versions earlier than ios6: Terminating app due to uncaught exception 'nsinvalidunarchiveoperationexception', reason: 'Could not instantiate class named nslayoutconstraint
'

Use Cases: iPhone and iPad 4.5/5.0 Simulator for xcode 5.1)

Solution: Disable the use auto layout option of the storyboard or XIB interface file, because the auto layout feature is newly added to iOS 6 and is not supported in the previous 5.0/5.1 simulator.


 

Reference URL: http://www.cocoachina.com/bbs/read.php? Tid = 116558