12.04 - Cannot Install shutter

I get this error when I try installing shutter:

The following packages have unmet dependencies:

$ sudo apt-get install -f shutter 
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:
 shutter : Depends: libxml-simple-perl but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I checked out the other Ask Ubuntu thread but the solution mentions mirrors but he has not elaborated further.