cocos2dx 2.2.3 xcode5.0，新mac项目错误

cocos2dx 2.2.3 xcode5.0，新建mac项目报错   

Undefined symbols for architecture x86_64:
  "cocos2d::extension::LabelReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::ButtonReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::LayoutReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::SliderReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::CheckBoxReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::ListViewReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::PageViewReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::ImageViewReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::TextFieldReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::LabelAtlasReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::LoadingBarReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::ScrollViewReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
  "cocos2d::extension::LabelBMFontReader::createInstance()", referenced from:
      cocos2d::extension::GUIReader::GUIReader() in GUIReader.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)


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报错信息如上，demo中的样例能够执行。新建的项目ios版能够执行，可是mac版执行编译报错。

使用的是cocos2dx2.2.3版本号

解决的方法：直接将目录WidgetReader拷贝进项目

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