Twitter XML Error: Linking Error libxml2.dylib at Xcode 3.2.5 & SDK 4.2 February 11, 2011 ust add the libxml2.dylib to frameworks then from target configuration I add " ${SDKROOT}/usr/include/libxml2 " to the header search path. Help Link : http://mobile.tutsplus.com/tutorials/iphone/twitter-api-iphone/ Read more