sudo apt-get install ubuntu-desktop, Error: unable to locate package

Question

When I try sudo apt-get install ubuntu-desktop I get the error message: unable to locate package ubuntu-desktop. Where do I obtain the package? Or what am I doing wrong?

Answer 1

The most likely situation is that you need to update your sources for some reason, with

sudo apt-get update

It's also possible that your sources aren't set up correctly. You can configure them in the update manager. They are located in the file /etc/apt/sources.list - if you continue to have problems paste the source of that file here.

Answer 2

Enter the following in the terminal:

    sudo su
    apt-get clean
    cd /var/lib/apt
    mv lists lists.old
    mkdir -p lists/partial
    apt-get clean
    apt-get update