在MAC OS X系统下，当我们尝试运行一个可执行文件时，会得到以下错误:
dyld: Library not loaded: libopencv_dnn.3.3.dylib
Referenced from: /Users/name/Desktop/project/client"
Reason: image not found
Trace/BPT trap:5首先 cd 到可执行件./client所在目录：$ otool -L client ,输出如下：
client:
@rpath/libopencv_dnn.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_ml.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_objdetect.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_shape.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_stitching.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_superres.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_videostab.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_calib3d.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_features2d.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_highgui.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_videoio.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_imgcodecs.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_video.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_photo.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_imgproc.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_flann.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_core.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
/usr/local/lib/libwebsockets.12.dylib (compatibility version 12.0.0, current version 0.0.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 307.5.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1238.60.2)由与OpenCV的安装后的动态链接库 可执行程序搜索不到，就回报以上错误，这就需要将“@rpath/libopencv_dnn.3.3.dylib ” 用真实的动态库所在路径去修复并替代，使其指引到真实库上。假设我的OpenCV的动态就在当前目录下的./lib/目录下，只需执行：$ install_name_tool -change @rpath/libopencv_dnn.3.3.dylib ./lib/libopencv_dnn.3.3.dylib client 。
然后在执行：$ otool -L client ,即可修正动态链接库的路径，显示如下：
client:
./lib/libopencv_dnn.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_ml.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_objdetect.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_shape.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_stitching.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_superres.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_videostab.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_calib3d.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_features2d.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_highgui.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_videoio.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_imgcodecs.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_video.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_photo.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_imgproc.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_flann.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_core.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
/usr/local/lib/libwebsockets.12.dylib (compatibility version 12.0.0, current version 0.0.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 307.5.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1238.60.2)按照此方式修正所有的链接库路径，当我们再去执行时还会报错的，因为libopencv_dnn.3.3.dylib 等依赖了其他的OpenCV动态库，执行：$otool -L ./lib/libopencv_dnn.3.3.dylib
./lib/libopencv_dnn.3.3.dylib:
@rpath/libopencv_dnn.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
@rpath/libopencv_imgproc.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
/System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate (compatibility version 1.0.0, current version 4.0.0)
@rpath/libopencv_core.3.3.dylib (compatibility version 3.3.0, current version 3.3.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 307.5.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1238.60.2)此时，我们需要将所有的OpenCV的动态库彼此依赖的库路径按照上面方法都要修正过来。
自己写了一个修正的脚步程序，供参考：
#!/bin/bash
install_name_tool -change /usr/local/lib/libwebsockets.12.dylib ./lib/libwebsockets.12.dylib server
install_name_tool -change @rpath/libopencv_dnn.3.3.dylib ./lib/libopencv_dnn.3.3.dylib client
install_name_tool -change @rpath/libopencv_ml.3.3.dylib ./lib/libopencv_ml.3.3.dylib client
install_name_tool -change @rpath/libopencv_objdetect.3.3.dylib ./lib/libopencv_objdetect.3.3.dylib client
install_name_tool -change @rpath/libopencv_shape.3.3.dylib ./lib/libopencv_shape.3.3.dylib client
install_name_tool -change @rpath/libopencv_stitching.3.3.dylib ./lib/libopencv_stitching.3.3.dylib client
install_name_tool -change @rpath/libopencv_superres.3.3.dylib ./lib/libopencv_superres.3.3.dylib client
install_name_tool -change @rpath/libopencv_videostab.3.3.dylib ./lib/libopencv_videostab.3.3.dylib client
install_name_tool -change @rpath/libopencv_calib3d.3.3.dylib ./lib/libopencv_calib3d.3.3.dylib client
install_name_tool -change @rpath/libopencv_features2d.3.3.dylib ./lib/libopencv_features2d.3.3.dylib client
install_name_tool -change @rpath/libopencv_highgui.3.3.dylib ./lib/libopencv_highgui.3.3.dylib client
install_name_tool -change @rpath/libopencv_videoio.3.3.dylib ./lib/libopencv_videoio.3.3.dylib client
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib client
install_name_tool -change @rpath/libopencv_video.3.3.dylib ./lib/libopencv_video.3.3.dylib client
install_name_tool -change @rpath/libopencv_photo.3.3.dylib ./lib/libopencv_photo.3.3.dylib client
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib client
install_name_tool -change @rpath/libopencv_flann.3.3.dylib ./lib/libopencv_flann.3.3.dylib client
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib client
install_name_tool -change /usr/local/lib/libwebsockets.12.dylib ./lib/libwebsockets.12.dylib client
#install_name_tool -change /usr/lib/libc++.1.dylib ./lib/libc++.1.dylib client
#install_name_tool -change /usr/lib/libSystem.B.dylib ./lib/libSystem.B.dylib client
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_dnn.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_dnn.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_imgproc.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_imgcodecs.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_imgcodecs.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_ml.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_objdetect.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_objdetect.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_shape.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_shape.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_video.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_video.3.3.dylib
install_name_tool -change @rpath/libopencv_calib3d.3.3.dylib ./lib/libopencv_calib3d.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_features2d.3.3.dylib ./lib/libopencv_features2d.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_flann.3.3.dylib ./lib/libopencv_flann.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_highgui.3.3.dylib ./lib/libopencv_highgui.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_videoio.3.3.dylib ./lib/libopencv_videoio.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_stitching.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_calib3d.3.3.dylib
install_name_tool -change @rpath/libopencv_features2d.3.3.dylib ./lib/libopencv_features2d.3.3.dylib lib/libopencv_calib3d.3.3.dylib
install_name_tool -change @rpath/libopencv_flann.3.3.dylib ./lib/libopencv_flann.3.3.dylib lib/libopencv_calib3d.3.3.dylib
install_name_tool -change @rpath/libopencv_highgui.3.3.dylib ./lib/libopencv_highgui.3.3.dylib lib/libopencv_calib3d.3.3.dylib
install_name_tool -change @rpath/libopencv_videoio.3.3.dylib ./lib/libopencv_videoio.3.3.dylib lib/libopencv_calib3d.3.3.dylib
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib lib/libopencv_calib3d.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_calib3d.3.3.dylib
install_name_tool -change @rpath/libopencv_flann.3.3.dylib ./lib/libopencv_flann.3.3.dylib lib/libopencv_features2d.3.3.dylib
install_name_tool -change @rpath/libopencv_highgui.3.3.dylib ./lib/libopencv_highgui.3.3.dylib lib/libopencv_features2d.3.3.dylib
install_name_tool -change @rpath/libopencv_videoio.3.3.dylib ./lib/libopencv_videoio.3.3.dylib lib/libopencv_features2d.3.3.dylib
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib lib/libopencv_features2d.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_features2d.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_features2d.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_flann.3.3.dylib
install_name_tool -change @rpath/libopencv_videoio.3.3.dylib ./lib/libopencv_videoio.3.3.dylib lib/libopencv_highgui.3.3.dylib
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib lib/libopencv_highgui.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_highgui.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_highgui.3.3.dylib
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib lib/libopencv_videoio.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_videoio.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_videoio.3.3.dylib
install_name_tool -change @rpath/libopencv_videoio.3.3.dylib ./lib/libopencv_videoio.3.3.dylib lib/libopencv_superres.3.3.dylib
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib lib/libopencv_superres.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_superres.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_superres.3.3.dylib
install_name_tool -change @rpath/libopencv_calib3d.3.3.dylib ./lib/libopencv_calib3d.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_features2d.3.3.dylib ./lib/libopencv_features2d.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_flann.3.3.dylib ./lib/libopencv_flann.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_highgui.3.3.dylib ./lib/libopencv_highgui.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_videoio.3.3.dylib ./lib/libopencv_videoio.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_imgcodecs.3.3.dylib ./lib/libopencv_imgcodecs.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_video.3.3.dylib ./lib/libopencv_video.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_photo.3.3.dylib ./lib/libopencv_photo.3.3.dylib lib/libopencv_videostab.3.3.dylib
install_name_tool -change @rpath/libopencv_imgproc.3.3.dylib ./lib/libopencv_imgproc.3.3.dylib lib/libopencv_photo.3.3.dylib
install_name_tool -change @rpath/libopencv_core.3.3.dylib ./lib/libopencv_core.3.3.dylib lib/libopencv_photo.3.3.dylib
install_name_tool -change /usr/local/lib/libssl.1.1.dylib ./lib/libssl.1.1.dylib lib/libwebsockets.12.dylib
install_name_tool -change /usr/local/lib/libcrypto.1.1.dylib ./lib/libcrypto.1.1.dylib lib/libwebsockets.12.dylib
install_name_tool -change /usr/local/lib/libcrypto.1.1.dylib ./lib/libcrypto.1.1.dylib lib/libssl.1.1.dylib
也可参考：