make all在caffe安装中给出链接器命令失败错误

Question

在完成caffe安装中的所有步骤后，我发现此错误：

clang: warning: argument unused during compilation: '-pthread'
Undefined symbols for architecture x86_64:
  "cv::imread(std::string const&, int)", referenced from:
      caffe::WindowDataLayer<float>::InternalThreadEntry() in window_data_layer.o
      caffe::WindowDataLayer<double>::InternalThreadEntry() in window_data_layer.o
      caffe::ReadImageToDatum(std::string const&, int, int, int, bool, caffe::Datum*) in io.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [.build_release/lib/libcaffe.so] Error 1

可以做些什么。我尝试了所有可能的情况，重新安装并找到githun问题。

提前完成。

Answer 1

好像你没有在系统中安装OpenCV。 如果您使用的是Homebrew包管理器，请尝试执行以下命令

brew tap homebrew/science
brew install homebrew/science/opencv

如果以上两行命令执行时没有任何错误，请尝试再次构建Caffe。