ios ZBar扫二维码奇奇怪怪的错误

Undefined symbols for architecture armv7:
  "_CVPixelBufferGetHeight", referenced from:
      -[ZBarCVImage convertCVtoRGB] in libzbar.a(ZBarCVImage.o)
  "_CVPixelBufferRetain", referenced from:
      -[ZBarCVImage setPixelBuffer:] in libzbar.a(ZBarCVImage.o)
  "_CVPixelBufferRelease", referenced from:
      -[ZBarCVImage setPixelBuffer:] in libzbar.a(ZBarCVImage.o)
  "_CMSampleBufferGetNumSamples", referenced from:
      -[ZBarCaptureReader captureOutput:didOutputSampleBuffer:fromConnection:] in libzbar.a(ZBarCaptureReader.o)
 
 "_iconv_open", referenced from:
      __nl_find_msg inGStreamer(libintl_a_i386_-dcigettext.o)
这些错误并非是配置不正确，而是需要增加libiconv.dylib这个库，
把coreVideo.FrameWork加进去！CoreMedia.FrameWork
加进去
增加之后就可以正常编译运行了，