Не удается установить затвор из-за libxml-simple-perl

Я не могу установить шторку:

$ 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.

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

Версия Ubuntu 12.04 LTS - стандартная установка "Wubuntu". Я не добавил никаких других репозиториев.

Запуск: apt-cache policy shutter libxml-simple-perl libxml-sax-perl libxml-libxml-perl libxml-sax-expat-perl приводит к:

Installed: (none) and 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 

для каждого из этих пакетов.

Что делать дальше?