问题描述
在我的项目上运行CMake（实际上是rosmake）时，我收到错误。我已经安装了OpenCV，但我得到以下错误：
I am receiving an error when running CMake (actually rosmake) on my project. I have already installed OpenCV, but I get the following error:
Linking CXX shared library ../lib/libCornerHelper.so
/usr/bin/ld: cannot find -lopencv_contrib
/usr/bin/ld: cannot find -lopencv_legacy
/usr/bin/ld: cannot find -lopencv_stitching
/usr/bin/ld: cannot find -lopencv_gpu
/usr/bin/ld: cannot find -lopencv_objdetect
/usr/bin/ld: cannot find -lopencv_calib3d
/usr/bin/ld: cannot find -lopencv_features2d
/usr/bin/ld: cannot find -lopencv_video
/usr/bin/ld: cannot find -lopencv_highgui
/usr/bin/ld: cannot find -lopencv_ml
/usr/bin/ld: cannot find -lopencv_imgproc
/usr/bin/ld: cannot find -lopencv_flann
/usr/bin/ld: cannot find -lopencv_core
collect2: ld returned 1 exit status
make[3]: *** [../lib/libCornerHelper.so] Error 1
有人知道如何解决这个问题吗？
Does anyone know how to solve this?
推荐答案
显然，他找不到opencv链接对你的项目。您是否将它安装在/ usr或/ usr / local之外的其他位置？
Apparently, he could not find opencv to link against your project. Did you install it in somewhere else other than /usr or /usr/local?
如果是这样，您需要将路径添加到LD_LIBRARY_PATH变量等。
当您运行此系统时，系统会说什么？
If so, you need to add the path to LD_LIBRARY_PATH variable and so on.What does your system say when you run this?
pkg-config --cflags --libs opencv
如果你得到这样的东西，那么你的系统就可以了。
If you get something like this, then your system is ok.
-I/opt/opencv/include/opencv -I/opt/opencv/include -L/opt/opencv/lib -lopencv_core -lopencv_imgproc -lopencv_highgui -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann
但如果没有，无法找到它，cmake将不会找到它：
but if you don't, your system is not able to find it and cmake will not find it either:
Package opencv was not found in the pkg-config search path. Perhaps you should add the directory containing `opencv.pc' to the PKG_CONFIG_PATH environment variable No package 'opencv' found
这篇关于在Ubuntu中基于OpenCV和ROS编译项目的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！