Não é possível instalar as dependências não atendidas do qt-sdk

Question

Eu tentei instalar o qt-sdk no ubuntu 12.10 como posso corrigir esse problema?

log de instalação:

apt-get install qt-sdk
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:
 qt-sdk : Depends: qt4-designer but it is not going to be installed
          Depends: qt4-dev-tools but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

    

Answer 1

Primeiro faça

sudo apt-get install qtcreator 
sudo apt-get install qt4-designer
sudo apt-get install qt4-dev-tools

então

sudo apt-get install qt-sdk