问由于未定义符号，cocos2dx构建失败

EN

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_CMMotionManager", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCDevice-ios.o)
  "_OBJC_CLASS_$_EAGLContext", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCDirectorCaller-ios.o)
  "_OBJC_CLASS_$_UIApplication", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCApplication-ios.o)
      objc-class-ref in libcocos2d iOS.a(CCDirectorCaller-ios.o)
      objc-class-ref in libcocos2d iOS.a(CCDevice-ios.o)
  "_OBJC_CLASS_$_UIColor", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCDevice-ios.o)
  "_OBJC_CLASS_$_UIDevice", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCApplication-ios.o)
      objc-class-ref in libcocos2d iOS.a(CCDevice-ios.o)
  "_OBJC_CLASS_$_UIFont", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCDevice-ios.o)
  "_OBJC_CLASS_$_UIImage", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCImage-ios.o)
  "_OBJC_CLASS_$_UIScreen", referenced from:
      objc-class-ref in libcocos2d iOS.a(CCDevice-ios.o)
  "_UIApplicationDidBecomeActiveNotification", referenced from:
      -[CCDirectorCaller init] in libcocos2d iOS.a(CCDirectorCaller-ios.o)
  "_UIApplicationWillResignActiveNotification", referenced from:
      -[CCDirectorCaller init] in libcocos2d iOS.a(CCDirectorCaller-ios.o)
  "_UIGraphicsPopContext", referenced from:
      cocos2d::Device::getTextureDataForText(char const*, cocos2d::FontDefinition const&, cocos2d::Device::TextAlign, int&, int&, bool&) in libcocos2d iOS.a(CCDevice-ios.o)
  "_UIGraphicsPushContext", referenced from:
      cocos2d::Device::getTextureDataForText(char const*, cocos2d::FontDefinition const&, cocos2d::Device::TextAlign, int&, int&, bool&) in libcocos2d iOS.a(CCDevice-ios.o)
  "_UIImageJPEGRepresentation", referenced from:
      cocos2d::Image::saveToFile(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) in libcocos2d iOS.a(CCImage-ios.o)
  "_UIImagePNGRepresentation", referenced from:
      cocos2d::Image::saveToFile(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) in libcocos2d iOS.a(CCImage-ios.o)
  "AppDelegate::AppDelegate()", referenced from:
      _main in main.o
  "AppDelegate::~AppDelegate()", referenced from:
      _main in main.o
  "_glBindVertexArrayOES", referenced from:
      cocos2d::GL::bindVAO(unsigned int) in libcocos2d iOS.a(ccGLStateCache.o)
  "_glDeleteVertexArraysOES", referenced from:
      cocos2d::Renderer::~Renderer() in libcocos2d iOS.a(CCRenderer.o)
      cocos2d::MeshCommand::releaseVAO() in libcocos2d iOS.a(CCMeshCommand.o)
      cocos2d::TextureAtlas::~TextureAtlas() in libcocos2d iOS.a(CCTextureAtlas.o)
      cocos2d::CameraBackgroundSkyBoxBrush::~CameraBackgroundSkyBoxBrush() in libcocos2d iOS.a(CCCameraBackgroundBrush.o)
      cocos2d::CameraBackgroundSkyBoxBrush::initBuffer() in libcocos2d iOS.a(CCCameraBackgroundBrush.o)
      cocos2d::Physics3DDebugDrawer::~Physics3DDebugDrawer() in libcocos2d iOS.a(CCPhysics3DDebugDrawer.o)
      cocos2d::DrawNode::~DrawNode() in libcocos2d iOS.a(CCDrawNode.o)
  ...
  "_glGenVertexArraysOES", referenced from:
      cocos2d::Renderer::setupVBOAndVAO() in libcocos2d iOS.a(CCRenderer.o)
      cocos2d::MeshCommand::buildVAO() in libcocos2d iOS.a(CCMeshCommand.o)
      cocos2d::TextureAtlas::setupVBOandVAO() in libcocos2d iOS.a(CCTextureAtlas.o)
      cocos2d::CameraBackgroundSkyBoxBrush::initBuffer() in libcocos2d iOS.a(CCCameraBackgroundBrush.o)
      cocos2d::Physics3DDebugDrawer::init() in libcocos2d iOS.a(CCPhysics3DDebugDrawer.o)
      cocos2d::DrawNode::init() in libcocos2d iOS.a(CCDrawNode.o)
      cocos2d::VertexAttribBinding::init(cocos2d::MeshIndexData*, cocos2d::GLProgramState*) in libcocos2d iOS.a(CCVertexAttribBinding.o)
  ...
  "_glMapBufferOES", referenced from:
      cocos2d::Renderer::drawBatchedTriangles() in libcocos2d iOS.a(CCRenderer.o)
      cocos2d::TextureAtlas::drawNumberOfQuads(long, long) in libcocos2d iOS.a(CCTextureAtlas.o)
  "_glUnmapBufferOES", referenced from:
      cocos2d::Renderer::drawBatchedTriangles() in libcocos2d iOS.a(CCRenderer.o)
      cocos2d::TextureAtlas::drawNumberOfQuads(long, long) in libcocos2d iOS.a(CCTextureAtlas.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)