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I tried to install WPS Office on my laptop (ubuntu 16.10 Gnome, 64 bit) with Gdebi installer but it said 

Dependency is not satisfiable: libpng12-0

Then I tried to open this library as follows

sudo apt-get install libpng12-0

But I encountered an error:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package libpng12-0 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'libpng12-0' has no installation candidate

Can anyone help? Thanks a lot

Garp
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3 Answers3

31

You can download the libpng12-0 package from here:

I had the same dependency problem. But downloading and installing fix edthe error. Ubuntu 16.10 killed these libs jeje.

Zanna
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Victor Cando
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  • wow. it worked. thanks a lot. It took me the whole day! – Garp Oct 21 '16 at 23:49
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    following the instruction at the link to add the mirror to your sources worked for me – n8sty Sep 11 '17 at 17:57
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    Running Xubuntu 17.10. This solution didn't work for me. After installing libpng12-0 this way, the TeamViewer install (what I'm really trying to install) still thinks libpng12-0 is not installed. Do I need to update a database somewhere? – Adrian Keister Jan 26 '18 at 22:36
  • This answer doesn't set up correct package pinning. You need to do this (unfortunately can't post as an answer cause lack of rep): Package: * Pin: release n=xenial Pin-Priority: -10

    Package: libpng12-0 Pin: release n=xenial Pin-Priority: 500

     – Paul Dejean Jun 13 '19 at 15:57
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    deadlink, please fix – stiv Sep 23 '19 at 11:19
17

Downloading and manually installing a package is not the recommended way of doing things in ubuntu, it is strongly suggested to use a package manager like aptitude or synaptic to download and install packages.

To do it in the command line first you have to add a repository. This involves modifying /etc/apt/sources.list so you must create a backup

Open a Terminal window

sudo nano /etc/apt/sources.list

At the top of the list add

#### BACKUP for /etc/apt/sources.list created <insert date here>

press ctrl+o to save the file to a new location. I have a folder in my home directory for backups, but you can put it anywhere you will remember that it exists. For my backup folder I saved it as /home/USERNAME/os_file_backups/backup_03-06-17_apt-sources.list hit enter to save, it will ask you if you want to save it with a different name press y to save the file and then ctrl-x to exit nano

once again go back to sources.list

sudo nano /etc/apt/sources.list

at the bottom of the file add

#### Manually Added sources
## source for libpng12-0 package
deb http://mirrors.kernel.org/ubuntu/ xenial main

^note for above, mirrors.kernel.org is one of many mirrors that can be used. You can replace mirrors.kernel.org/ubuntu with any of the mirrors listed at http://packages.ubuntu.com/xenial/amd64/libpng12-0/download that you wish to use

press ctrl+x and hit yes to save the file

now to update the package list

sudo apt-get update

and install the package

sudo apt-get install libpng12-0

shazam you have added libpng-12-0 using apt so you will get updated packages whenever you run apt-get upgrade

drmuelr
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ffmurray
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1

This also happen when you try to install incompatible package with your distro (like install trusty .dep package on bionic).

Ibrahim.H
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