error while loading shared libraries libpng16

Question

I am trying to compile and run this code under ubuntu 14.04. I downloaded and installed libpng version 1.6.12. I am able to compile the code using gcc test.c -lpng but when I try to run it, I get this error: ./a.out: error while loading shared libraries: libpng16.so.16: cannot open shared object file: No such file or directory

edit:
So I found libpng16.so.16, it was in /usr/local/lib and I copied it to /usr/local/include/libpng16/ and as well to /usr/local/include/ and recompiled the code, anyway the problem still persists.

Any suggestions ?

score 32 · Answer 1 · edited May 23 '17 at 11:53

32

Ok so I found the solution here. The trick is to run sudo ldconfig after you install some shared library.

edited May 23 '17 at 11:53

Community

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answered Aug 29 '14 at 05:29

Michal Krakovsky

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I thought it would be harder, but this worked perfectly! +1 – AJMansfield Aug 22 '15 at 18:52

score 11 · Accepted Answer · answered Oct 06 '17 at 21:07

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You can download the library from the link https://sourceforge.net/projects/libpng/?source=directory

It will download a file something like "libpng-1.6.32.tar.xz"

Simply extract the file go inside folder and run these commands to install

./configure
make check
make install

Then you need to run after installing any library

ldconfig

answered Oct 06 '17 at 21:07

Krishan Kumar Mourya

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I had to use `sudo make install` and `sudo ldconfig` instead for those last 2 commands. – Gabriel Staples Jan 27 '18 at 22:15

score 0 · Answer 3 · answered Aug 28 '14 at 14:22

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I had same problem before I had installed it form below link and problem fixed.

I hope yours would be fixed as well

PNG reference library: libpng

answered Aug 28 '14 at 14:22

Mehdi Golzadeh

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Thanks for answer, unfortunately it didn't help in my case. – Michal Krakovsky Aug 28 '14 at 14:33

error while loading shared libraries libpng16

3 Answers3