I got this error only now and will find a solution to solve it.
I tried to call the getResourceValue: forKey: error: function in my project and my os version 10.7.5.
NSURL, + URLWithString: , + fileURLWithPath:, .
:/Volumes/Data/a file://localhost/Volumes/Data/a/
Apple , NSURL ,
NSURL NSURL, ; RFC 2396. , , - , . NSURL , , . NSURL , fileURLWithPath: initFileURLWithPath:, URL- . , , Core Foundation, .
getResourceValue: forKey NSURL