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I'm running Ubuntu 11.04 with gnome-shell and I have a conflict in apt-get that don't let me upgrade / install new packages (my system is in Spanish, because of that some output is in this language)

when I run apt-get upgrade:

Tal vez quiera ejecutar «apt-get -f install» para corregirlo. Los siguientes paquetes tienen dependencias incumplidas:  gnome-session : Depende: gnome-session-common (=
3.0.1-0ubuntu1~build2) pero 3.0.2-0ubuntu3~natty1 está instalado E: Dependencias incumplidas. Pruebe de nuevo usando -f.

gnome-sessions depend on gnome-session-common (= 3.0.1-0ubuntu1~build2) but 3.0.2-0ubuntu3~natty1 is installed

If I run apt-get -f install:

dpkg: error al procesar /var/cache/apt/archives/gnome-session_3.0.2-0ubuntu3~natty1_all.deb (--unpack):
 intentando sobreescribir `/usr/share/xsessions/gnome-shell.desktop', que está también en el paquete gnome-shell 3.0.1-0ubuntu1~build1
Se encontraron errores al procesar:
E: Sub-process /usr/bin/dpkg returned an error code (1)

I have a similar error.

apt-get clean apt-get autoclean

with or without "-f" have similar outputs


deb natty main restricted
deb-src natty main restricted

deb natty-updates main restricted
deb-src natty-updates main restricted

deb natty universe
deb-src natty universe
deb natty-updates universe
deb-src natty-updates universe

deb natty multiverse
deb-src natty multiverse
deb natty-updates multiverse
deb-src natty-updates multiverse

deb natty-security main restricted
deb-src natty-security main restricted
deb natty-security universe
deb-src natty-security universe
deb natty-security multiverse
deb-src natty-security multiverse

deb natty main
deb-src natty main

deb natty main
deb-src natty main

can anybody help me?

share|improve this question
What's in your /etc/apt/sources.list? There must be something other than the regular Ubuntu archives, since Ubuntu package search doesn't show mention gnome-sessions at all (just gnome-session), and this post references a Gnome PPA. – Mike Renfro Jun 2 '11 at 12:35

2 Answers 2

I think the mirror you currently use is broken, or not totally synced.
Simply switch mirrors with Synaptic, or use a text editor.

With Synaptic, you can do the switch from the options.
If you want to use a text editor, do the following:
1) Open up a terminal
2) Type: gksu gedit /etc/apt/sources.list
3) Edit -> Replace All.
4) Replace all the country strings, to an anouther country.

Like in my case, I have "hu.archive." by default, which is the worse mirror I've ever seen. So I go there after every install, and change the "hu" part to "de" as in Germany. So it looks like this: de.archive. (All the lines where there is a country PREfix.)

After this, do an apt-get update and then, try the upgrade (again).

share|improve this answer
thanks but it isn't the problem. :( – Mordi Jun 1 '11 at 23:41

Remove the stuff you added to source.list. Execute this command first:

$ sudo add-apt-repository ppa:gnome3-team/gnome3

After you have entered your password and it is added, do this:

$ gksu apt-get update

Afterwords, upgrade all packages with

$ sudo apt-get dist-upgrade

You will then require gnome-shell:

$ sudo apt-get install gnome-shell

Afterwards, just reboot and at login you should be able to select Gnome Shell Desktop from the menu

share|improve this answer
This post helped me resolve a small apt-get update issue I was having earlier. Thanks! – Isxek Oct 25 '11 at 18:27

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