installing gnome-shell: some kind of dependencies problem in ubuntu 12.10

Hi ,

what other PPAs have you added ?

Give the results of this command

~$ find /etc/apt -name '*.list' -exec bash -c 'echo -e "\n$1\n"; cat -n "$1"' _ '{}' \;

This seems a problem either from some PPA where messed up your system's packages
or
a problem with proposed-updates.

Do you have proposed-updates enabled ?

How to check.

Give this command in terminal

~$ gksudo software-properties-gtk

at the opened window goto "Updates" section and see if Quantal-proposed are marked. Un-mark (un-tick) the box and run in terminal

~$ sudo apt-get update
~$ sudo apt-get dist-upgrade

Then try again to install gnome-shell.

Thanks

umar@hcsc-i3:~$ find /etc/apt -name '*.list' -exec bash -c 'echo -e "\n$1\n"; cat -n "$1"' _ '{}' \;

/etc/apt/sources.list

     1 # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
     2
     3 # newer versions of the distribution.
     4 deb http://pk.archive.ubuntu.com/ubuntu/ quantal main restricted
     5 deb-src http://pk.archive.ubuntu.com/ubuntu/ quantal main restricted
     6
     7 ## Major bug fix updates produced after the final release of the
     8 ## distribution.
     9 deb http://pk.archive.ubuntu.com/ubuntu/ quantal-updates main restricted
    10 deb-src http://pk.archive.ubuntu.com/ubuntu/ quantal-updates main restricted
    11
    12 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
    13 ## team. Also, please note that software in universe WILL NOT receive any
    14 ## review or updates from the Ubuntu security team.
    15 deb http://pk.archive.ubuntu.com/ubuntu/ quantal universe
    16 deb-src http://pk.archive.ubuntu.com/ubuntu/ quantal universe
    17 deb http://pk.archive.ubuntu.com/ubuntu/ quantal-updates universe
    18 deb-src http://pk.archive.ubuntu.com/ubuntu/ quantal-updates universe
    19
    20 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
    21 ## team, and may not be under a free licence. Please satisfy yourself as to
    22 ## your rights to use the software. Also, please note that software in
    23 ## multiverse WILL NOT receive any review or updates from the Ubuntu
    24 ## security team.
    25 deb http://pk.archive.ubuntu.com/ubuntu/ quantal multiverse
    26 deb-src http://pk.archive.ubuntu.com/ubuntu/ quantal multiverse
    27 deb http://pk.archive.ubuntu.com/ubuntu/ quantal-updates multiverse
    28 deb-src http://pk.archive.ubuntu.com/ubuntu/ quantal-updates multiverse
    29
    30 ## N.B. software from this repository may not have been tested as
    31 ## extensively as that contained in the main release, although it includes
    32 ## newer versions of some applications which may provide useful features.
    33 ## Also, please note that software in backports WILL NOT receive any review
    34 ## or updates from the Ubuntu security team.
    35
    36 deb http://security.ubuntu.com/ubuntu quantal-security main restricted
    37 deb-src http://security.ubuntu.com/ubuntu quantal-security main restricted
    38 deb http://security.ubuntu.com/ubuntu quantal-security universe
    39 deb-src http://security.ubuntu.com/ubuntu quantal-security universe
    40 deb http://security.ubuntu.com/ubuntu quantal-security multiverse
    41 deb-src http://security.ubuntu.com/ubuntu quantal-security multiverse
    42
    43 ## Uncomment the following two lines to add software from Canonical's
    44 ## 'partner' repository.
    45 ## This software is not part of Ubuntu, but is offered by Canonical and the
    46 ## respective vendors as a service to Ubuntu users.
    47 deb http://archive.canonical.com/ubuntu quantal partner
    48 # deb-src http://archive.canonical.com/ubuntu quantal partner
    49
    50 ## Uncomment the following two lines to add software from Ubuntu's
    51 ## 'extras' repository.
    52 ## This software is not part of Ubuntu, but is offered by third-party
    53 ## developers who want to ship their latest software.
    54 deb http://extras.ubuntu.com/ubuntu quantal main
    55 # deb-src http://extras.ubuntu.com/ubuntu quantal main

Under updates tab in software properties only Important security updates and and Recommended updates are checked pre released updates and unsupported updates are not enabled.

Is this a fresh install of 12.10 , or upgrade release from 12.04 ?

It seems that your sources.list are clear .

Maybe you have to add the unofficial repository of gnome3-team.

You have to know that this repository will update-upgrade essential system packages. If brakes your system then you can remove it with these commands

~$ sudo apt-get install ppa:purge

~$ sudo ppa-purge ppa:gnome3-team/gnome3

~$ sudo apt-get update ; sudo apt-get dist-upgrade

Now add the repository and try again

~$ sudo add-apt-reposiroty ppa:gnome3-team/gnome3
~$ sudo apt-get update
~$ sudo apt-get dist-upgrade
~$ sudo apt-get install gnome-shell

Thanks

Yea this is a fresh install.
I changed the update server to main server.checked for updates again. it showed some updates to install. after installing all the available updates i am now able to install all softwares of my choise. I guess that problem was due to that update server which was previously selected.
anyways thanks a lot