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sudo apt-get install cinnamon
Reading package lists... Done
Building dependency tree       
Reading state information... Done
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 to 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
E: Unable to correct problems, you have held broken packages.
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closed as not constructive by Uri Herrera, devav2, theDefector, Ringtail, Mitch Oct 24 '12 at 19:05

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

Please add what you did before this step, cinnamon isn't available in the default repositories so you must have added something. –  Jorge Castro Oct 23 '12 at 18:21
How do I resolve unmet dependencies? may help. –  Eliah Kagan Aug 19 '13 at 4:10

2 Answers 2

You possibly used an outdated ppa, the solution to which was answered in this post: How can I install Cinnamon on Ubuntu 12.04 and eliminate the following errors:

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  sudo apt-get update -f && sudo apt-get -f install


  • try another repository remove curent cinnamon repository from source list in update manager settings-other software menu.

or install aptitude wich is better work with dependencies

  sudo apt-get install aptitude && sudo aptitude safe-upgrade

or try to

  • download .deb packages of dependencies on ubuntuupdates site and install them using gdebi manager (to install sudo apt-get install gdebi and open deb file with it)

here is example

Depends: gir1.2-muffin-3.0 but it is not going to be installed

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