I am experiencing this problem for the first time with Ubuntu 16.04, after a fresh installation.
Skype cannot be located after enabling Canonical Partners both in Software & Update, or by command line with the command:
sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner"
Then running the following:
sudo apt-get update
sudo apt-get install skype
However, I still get:
E: Unable to locate package skype
Any clue?
UPDATE
I run "sudo apt-get update –fix-missing" before trying to install skype, and this is the output I get:
Hit:1 http://cran.rstudio.com/bin/linux/ubuntu xenial/ InRelease
Hit:2 http://archive.canonical.com/ubuntu xenial InRelease
Hit:3 http://id.archive.ubuntu.com/ubuntu xenial InRelease
Get:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB]
Get:5 http://id.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB]
Get:6 http://id.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB]
Fetched 306 kB in 3s (79.5 kB/s)
Reading package lists... Done
I try "sudo apt-get install skype" again, and I obtain:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package skype
Best Answer
The legacy Skype for Linux application was discontinued and removed from Canonical's partner repositories. You can install the new Skype for Linux application instead.