$ sudo apt-get install cinnamon cinnamon-session cinnamon-settings
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'cinnamon' instead of 'cinnamon-session'
Note, selecting 'cinnamon' instead of 'cinnamon-settings'
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help resolve the situation:

The following packages have unmet dependencies:
 cinnamon : Depends: gir1.2-muffin-3.0 but it is not going to be installed
            Depends: libcogl5 (>= 1.7.4) but it is not installable
            Depends: libmuffin0 (>= 1.0.0-0ubuntu1~precise) but it is not going to be installed
            Recommends: gnome-themes-standard but it is not going to be installed
            Recommends: gnome-session-fallback but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I added this PPA:

sudo add-apt-repository ppa:merlwiz79/cinnamon-ppa

Then ran the following command:

sudo apt-get update && sudo apt-get install cinnamon cinnamon-session cinnamon-settings

How can I install the latest Cinnamon desktop? How can I fix this error?