Opencv 2.3.0 Flann链接错误(Xcode)

Question

我有一个较旧的系统(带有Xcode4.0的osx10.6.8)，我正在尝试让OpenCV 2.3.0在它上面工作。我不能解决的问题是，每当我尝试使用flann库时，我的xcode都会给我一个Mach-O链接器错误。到目前为止，我已经尝试重新编译所有的库，并从不同的源代码构建dylib，但没有任何帮助。当我检查终端中的库时，我得到

Freddi-2:OpenCV-2.3.0 fredchen$ file /usr/local/lib/libopencv_flann.dylib
/usr/local/lib/libopencv_flann.dylib: Mach-O 64-bit dynamically linked shared library x86_64

我的特定错误代码是：

Undefined symbols for architecture x86_64:
  "cv::flann::KDTreeIndexParams::KDTreeIndexParams(int)", referenced from:
  _main in main.o
  "cv::flann::SearchParams::SearchParams(int, float, bool)", referenced from:
  _main in main.o
  "cv::FlannBasedMatcher::FlannBasedMatcher(cv::Ptr<cv::flann::IndexParams> const&, cv::Ptr<cv::flann::SearchParams> const&)", referenced from:
  _main in main.o
  "cv::BFMatcher::BFMatcher(int, bool)", referenced from:
  _main in main.o
  "cv::flann::IndexParams::~IndexParams()", referenced from:
  cv::flann::SearchParams::~SearchParams() in main.o
  "cv::flann::IndexParams::~IndexParams()", referenced from:
  cv::Ptr<cv::flann::IndexParams>::delete_obj() in main.o
  "vtable for cv::BFMatcher", referenced from:
  cv::BFMatcher::~BFMatcher() in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我已经链接到该项目的动态库是：

libopencv_video.2.3.0.dylib
libopencv_objdetect.2.3.0.dylib
libopencv_ml.2.3.0.dylib
libopencv_legacy.2.3.0.dylib
libopencv_gpu.2.3.0.dylib
libopencv_contrib.2.3.0.dylib
libopencv_ts.2.3.0.dylib
libopencv_imgproc.2.3.0.dylib
libopencv_highgui.2.3.0.dylib
libopencv_flann.2.3.0.dylib
libopencv_features2d.2.3.0.dylib
libopencv_core.2.3.0.dylib
libopencv_calib3d.2.3.0.dylib

如果能帮上忙我会很感激的。谢谢!

Answer 1

我记得我在Mac上使用2.3.0时也遇到过类似的错误。你应该尝试使用最新的版本，或者是2.4.4或者是来自github的最新版本。