I am going to use NSXMLElement in my project, so I tried to
NSXMLElement
#import <Foundation/NSXMLDocument.h>
but it gives an error: "No such file or directory." How can I include this?
NSXMLDocument is an OS X only class
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSXMLDocument_Class/Reference/Reference.html
You cant use it in iOS.