c++ -/bin/sh : pkg-config: command not found

Question

我正在尝试从此链接运行手势识别 openCV 示例项目 https://github.com/simena86/handDetectionCV .我在 cygwin 终端中运行 make 命令，但出现错误。我在 cygwin 终端 E:\handDetectionCVmaster\make 中运行以下命令

输出:

 Arun@Arun-PC /cygdrive/e/handDetectionCVmaster
    $ make
    g++ -o opencv main.cpp myImage.cpp handGesture.cpp roi.cpp  `pkg-config --cflags --libs opencv`
    /bin/sh: pkg-config: command not found
    main.cpp:1:39: error: opencv2/imgproc/imgproc.hpp: No such file or directory
    main.cpp:2:29: error: opencv2/opencv.hpp: No such file or directory
    main.cpp:3:39: error: opencv2/highgui/highgui.hpp: No such file or directory
    In file included from main.cpp:8:
    myImage.hpp:8: error: 'cv' is not a namespace-name
    myImage.hpp:8: error: expected namespace-name before ';' token
    myImage.hpp:15: error: 'Mat' does not name a type
    myImage.hpp:16: error: 'Mat' does not name a type
    myImage.hpp:17: error: 'Mat' does not name a type
    myImage.hpp:18: error: 'Mat' was not declared in this scope
    myImage.hpp:18: error: template argument 1 is invalid
    myImage.hpp:18: error: template argument 2 is invalid
    myImage.hpp:19: error: 'VideoCapture' does not name a type
    In file included from main.cpp:9:
    roi.hpp:9: error: 'cv' is not a namespace-name
    roi.hpp:9: error: expected namespace-name before ';' token
    roi.hpp:14: error: expected ')' before 'upper_corner'
    roi.hpp:15: error: 'Point' does not name a type
    roi.hpp:16: error: 'Mat' does not name a type
    roi.hpp:17: error: 'Scalar' does not name a type
    roi.hpp:19: error: 'Mat' has not been declared
    In file included from main.cpp:10:
    handGesture.hpp:11: error: 'cv' is not a namespace-name
    handGesture.hpp:11: error: expected namespace-name before ';' token
    handGesture.hpp:18: error: 'Point' was not declared in this scope
    handGesture.hpp:18: error: template argument 1 is invalid
    handGesture.hpp:18: error: template argument 2 is invalid
    handGesture.hpp:18: error: template argument 1 is invalid
    handGesture.hpp:18: error: template argument 2 is invalid
    handGesture.hpp:20: error: 'Point' was not declared in this scope
    handGesture.hpp:20: error: template argument 1 is invalid
    handGesture.hpp:20: error: template argument 2 is invalid
    handGesture.hpp:20: error: template argument 1 is invalid
    handGesture.hpp:20: error: template argument 2 is invalid
    handGesture.hpp:21: error: 'Vec4i' was not declared in this scope
    handGesture.hpp:21: error: template argument 1 is invalid
    handGesture.hpp:21: error: template argument 2 is invalid
    handGesture.hpp:21: error: template argument 1 is invalid
    handGesture.hpp:21: error: template argument 2 is invalid
    handGesture.hpp:22: error: 'Point' was not declared in this scope
    handGesture.hpp:22: error: template argument 1 is invalid
    handGesture.hpp:22: error: template argument 2 is invalid
    handGesture.hpp:23: error: 'Rect' does not name a type
    handGesture.hpp:24: error: 'Mat' has not been declared
    handGesture.hpp:29: error: 'Rect' does not name a type
    handGesture.hpp:44: error: 'Point' has not been declared
    handGesture.hpp:44: error: 'Point' has not been declared
    handGesture.hpp:44: error: 'Point' has not been declared
    handGesture.hpp:53: error: 'Scalar' does not name a type
    handGesture.hpp:55: error: 'Point' has not been declared
    handGesture.hpp:55: error: 'Point' has not been declared
    handGesture.hpp:56: error: 'Vec4i' was not declared in this scope
    handGesture.hpp:56: error: template argument 1 is invalid
    handGesture.hpp:56: error: template argument 2 is invalid
    main.cpp:15: error: 'cv' is not a namespace-name
    main.cpp:15: error: expected namespace-name before ';' token
    main.cpp:19: error: 'FONT_HERSHEY_PLAIN' was not declared in this scope

Answer 1

这意味着您错过了 pkg-config 安装。这也是导致其余错误的原因，因为无法分别调用 pkg-config 命令的输出。

转到以下网址，获取并安装它:

http://ftp.gnome.org/pub/gnome/binaries/win32/dependencies/pkg-config_0.26-1_win32.zip

请注意，您可能需要从该站点安装更多依赖项，但基本上它应该可以工作。