openCV program compile error “libopencv_core.so.2.4: cannot open shared object file: No such file or directory” in ubuntu 12.04

by

You haven’t put the shared library in a location where the loader can find it. look inside the /usr/local/opencv and /usr/local/opencv2 folders and see if either of them contains any shared libraries (files beginning in lib and usually ending in .so). when you find them, create a file called /etc/ld.so.conf.d/opencv.conf and write to it the paths to the folders where the libraries are stored, one per line.

for example, if the libraries were stored under /usr/local/opencv/libopencv_core.so.2.4 then I would write this to my opencv.conf file:

/usr/local/opencv/

Then run 

sudo ldconfig -v

If you can’t find the libraries, try running

sudo updatedb && locate libopencv_core.so.2.4

in a shell. You don’t need to run updatedb if you’ve rebooted since compiling OpenCV.

References:

About shared libraries on Linux: http://www.eyrie.org/~eagle/notes/rpath.html

About adding the OpenCV shared libraries: http://opencv.willowgarage.com/wiki/InstallGuide_Linux

More Related Contents:

  1. OpenCV 2.3 Compiling Issue – Undefined Refence – Ubuntu 11.10
  2. Compiling multithread code with g++
  3. OpenCV on ubuntu 11.10
  4. Transpose a 1D byte-wise array to a 2D array
  5. Extracting text OpenCV
  6. OpenCV with Network Cameras
  7. Getting mangled name from demangled name
  8. Convert Mat to Array/Vector in OpenCV
  9. How to efficiently display OpenCV video in Qt?
  10. Get 3D coordinates from 2D image pixel if extrinsic and intrinsic parameters are known
  11. Why do I need to use typedef typename in g++ but not VS?
  12. g++ “calling” a function without parenthesis (not f() but f; ). Why does it always return 1?
  13. error: expected class-name before ‘{’ token
  14. How to use visual studio code to compile multi-cpp file?
  15. connected components in OpenCV
  16. Automatic perspective correction OpenCV
  17. How to read files in sequence from a directory in OpenCV?
  18. Convert RGB to Black & White in OpenCV
  19. Easiest way to rotate by 90 degrees an image using OpenCV?
  20. How do I install the OpenSSL libraries on Ubuntu?
  21. Is optimisation level -O3 dangerous in g++?
  22. trying to use imread() and imshow() raises OpenCV Error: Assertion failed (size.width>0 && size.height>0)
  23. Difference between regex_match and regex_search?
  24. using static libraries instead of dynamic libraries in opencv
  25. Convexity defects C++ OpenCv
  26. Why does sqrt() work fine on an int variable if it is not defined for an int?
  27. Why should I initialize member variables in the order they’re declared in?
  28. std::this_thread::sleep_for() and GCC
  29. Displacement Map Filter in OpenCV
  30. Is substitution performed on a variadic parameter pack type if the pack is empty?

Leave a Comment