MGTwitterEngine on the iPhone Compiler Error:libxml2.dylib in Xcode4.3.2

I am using Xcode4.3.2 and mac lionOs and unable to add libxml2.dylib because it's inbuilt file so am added that by Build settings Build Settings: Search Paths:

HEADER_SEARCH_PATHS = $(SDKROOT)/usr/include/libxml2

But i am getting 8 Errors of MGTwitterEngine on the iPhone Compiler Error:libxml2.dylib

Errors:

Undefined symbols for architecture i386:
  "_xmlReaderForMemory", referenced from:


  -[MGTwitterLibXMLParser initWithXML:delegate:connectionIdentifier:requestType:responseType:URL:] in MGTwitterLibXMLParser.o




 "_xmlTextReaderIsEmptyElement", referenced from:

  -[MGTwitterLibXMLParser _nodeValue] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _statusDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _userDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _hashDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser _directMessageDictionaryForNodeWithName:] in MGTwitterMessagesLibXMLParser.o




"_xmlTextReaderNodeType", referenced from:


  -[MGTwitterLibXMLParser _nodeValue] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _statusDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _userDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _hashDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser _directMessageDictionaryForNodeWithName:] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser parse] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMiscLibXMLParser parse] in MGTwitterMiscLibXMLParser.o


  ...


  "_xmlTextReaderValue", referenced from:


  -[MGTwitterLibXMLParser _nodeValue] in MGTwitterLibXMLParser.o


  "_xmlTextReaderRead", referenced from:


  -[MGTwitterLibXMLParser _nodeValue] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _statusDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _userDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _hashDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser _directMessageDictionaryForNodeWithName:] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser parse] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMiscLibXMLParser parse] in MGTwitterMiscLibXMLParser.o


  ...


  "_xmlTextReaderConstName", referenced from:


  -[MGTwitterLibXMLParser _statusDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _userDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _hashDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser _directMessageDictionaryForNodeWithName:] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser parse] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMiscLibXMLParser parse] in MGTwitterMiscLibXMLParser.o


  -[MGTwitterStatusesLibXMLParser parse] in MGTwitterStatusesLibXMLParser.o


  ...


  "_xmlStrEqual", referenced from:

  -[MGTwitterLibXMLParser _statusDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _userDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _hashDictionaryForNodeWithName:] in MGTwitterLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser _directMessageDictionaryForNodeWithName:] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMessagesLibXMLParser parse] in MGTwitterMessagesLibXMLParser.o


  -[MGTwitterMiscLibXMLParser parse] in MGTwitterMiscLibXMLParser.o


  -[MGTwitterStatusesLibXMLParser parse] in MGTwitterStatusesLibXMLParser.o


  ...


  "_xmlFree", referenced from:


  -[MGTwitterLibXMLParser initWithXML:delegate:connectionIdentifier:requestType:responseType:URL:] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _nodeValueAsString] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _nodeValueAsDate] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _nodeValueAsInt] in MGTwitterLibXMLParser.o


  -[MGTwitterLibXMLParser _nodeValueAsBool] in MGTwitterLibXMLParser.o

ld: symbol(s) not found for architecture i386

collect2: ld returned 1 exit status

how i resolve this.. share your ideas.

In your target settings (select your project in file manager and then your target):

1. Build Phases => Link Binary With Libraries;
2. Press the small + button at the left-bottom
3. In appeared dialog type libxml2.dylib and select it (maybe you'll need to expand "iOS 5.1" or like that category pressing little black triangle to the right of folder icon)
4. Press Add button, and you're done.

UPDATE: Check this ansver: LibXML2.dylib and Xcode4