使用甜点库扫描名片地址，但收到链接错误

Question

我在编译时遇到链接错误。

Undefined symbols for architecture x86_64:
  "tesseract::TessBaseAPI::GetUTF8Text()", referenced from:
      -[Tesseract recognizedText] in Tesseract.o
  "tesseract::TessBaseAPI::SetVariable(char const*, char const*)", referenced from:
      -[Tesseract setVariableValue:forKey:] in Tesseract.o
      -[Tesseract loadVariables] in Tesseract.o
  "tesseract::TessBaseAPI::Init(char const*, char const*, tesseract::OcrEngineMode, char**, int, GenericVector<STRING> const*, GenericVector<STRING> const*, bool)", referenced from:
      tesseract::TessBaseAPI::Init(char const*, char const*) in Tesseract.o
  "tesseract::TessBaseAPI::Version()", referenced from:
      +[Tesseract version] in Tesseract.o
  "tesseract::TessBaseAPI::SetImage(unsigned char const*, int, int, int, int)", referenced from:
      -[Tesseract setImage:] in Tesseract.o
  "tesseract::TessBaseAPI::Recognize(ETEXT_DESC*)", referenced from:
      -[Tesseract recognize] in Tesseract.o
  "tesseract::TessBaseAPI::TessBaseAPI()", referenced from:
      -[Tesseract initWithDataPath:language:] in Tesseract.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

/ Users / admin / Desktop / Screen Shot 2015-02-04 at 3.38.46 pm.png

如何解决它..或iOS8中支持的任何其他库...？