linux Mint上opencv的编译（安装）错误？

Question

I am following that tutorial to install and compile opencv but it produces following errors after some point (%22 of installation) of execution of make

...
[ 22%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/system.cpp.o
[ 22%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/tables.cpp.o
Linking CXX shared library ../../lib/libopencv_core.so
CMake Error: cmake_symlink_library: System Error: Operation not permitted
CMake Error: cmake_symlink_library: System Error: Operation not permitted
make[2]: *** [lib/libopencv_core.so.2.4.9] Error 1
make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2
make: *** [all] Error 2

I don't see the reason of the problem. I am running it as root but it gives not permitted error in any ways. I also changed to different folders for installation, but it does not work.

Any Suggestion to solve ?

Answer 1

I have this problem as well. Finally, I realized that I put opencv source code in the folder which is a symbol link to another folder. I simply put the folder in my home folder and make again. The problem solved. I do not know how you get this problem, and hope my solution will be useful for you.

Answer 2

I have solved this problem .... actually I have very low memory on my root file system so I mounted my pendrive to system using "ntfs-3g" driver using this tutorial

https://help.ubuntu.com/community/Mount/USB

but be alert don't follow blind steeps.

After this when I compiled files from my pendrive I did not get the error "CMake Error: cmake_symlink_library: System Error: Operation not permitted"

Answer 3

Do not compile opencv on FAT systems, as its fails as a result of not being able of setting the executable bit on those filesystems. Using ext4 should be enough to avoid this kind of problems.

There's a good set of tutorials for installing opencv over here:

https://www.pyimagesearch.com/2018/05/28/ubuntu-18-04-how-to-install-opencv/#comment-475432