libpng16.so.16 not found - how to get it?

Question

I have recently attempted to install mupen64plus on my Lubuntu machine. After doing this command:

sudo apt-get install mupen64plus

the install proceeds without error and everything sets up ok. But after I run the program, I get an error message about libpng16.so.16 not being present on the system. After doing a complete search of the file system, I could not find the shared library anywhere. So, is there a package or source repo where I can install this MIA shared library file into /usr/share/lib? After doing several Google searches of my own, I could not find anything to the effect. As far as I can tell, nobody has had this issue, or so few have had it that Google can't find anything about it.

Solution 1

I have found the answer to this issue, there is a source repo on Sourceforge: https://sourceforge.net/projects/libpng/?source=directory The trick when you install the shared object is when you have it installed, you have to run

ldconfig

before the system sees it.

Solution 2

Try installing the libpng-libary Version 16:

sudo apt-get install libpng16-16

Solution 3

You may download the library manually 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 and find a INSTALL file for instructions to install the library.

./configure
make check
make install

Then you need to run

ldconfig

Hope this will work!

Comments

[frlan]

Where have you the package from?

[nkeck72]

I suppose you mean installed the package from? If so, I installed mupen64plus as described in the question. I did not download a third-party package, I let apt-get do the job itself.

[frlan]

This sounds more like an bug and should be reported to launchpad as it appears that an Ubuntu package is having a dependency which cannot be solved.

[nkeck72]

If you will look at the answer below, this solves the issue. The package was not installed when I installed Lubuntu.

[gertvdijk]

@nkeck72 Looking from your answer, the ldconfig trigger is missing in the package, which appears to be required. So the point is still valid, report it as a bug. A user should not have to worry about ldconfig, really. :-)