E: Package 'libpng12-0' has no installation candidate [ubuntu 16.10 Gnome]

You can download the libpng12-0 package from here:

• http://packages.ubuntu.com/xenial/i386/libpng12-0/download for i386 architecture and
• http://packages.ubuntu.com/xenial/amd64/libpng12-0/download for amd64.

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

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