broken packages

try this

sudo apt-get update
sudo apt-get install vlc vlc-plugin-pulse

and provide output of above commands

thanks

Jeet

jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get update
[sudo] password for jagadeesh:
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric
InRelease
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)
oneiric/main TranslationIndex
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)
oneiric/restricted TranslationIndex
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)
oneiric/main Translation-en_US
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)
oneiric/main Translation-en
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)
oneiric/restricted Translation-en_US
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)
oneiric/restricted Translation-en
Ign http://security.ubuntu.com oneiric-security
InRelease
Ign http://extras.ubuntu.com oneiric
InRelease
Hit http://security.ubuntu.com oneiric-security
Release.gpg
Hit http://extras.ubuntu.com oneiric
Release.gpg
Hit http://security.ubuntu.com oneiric-security
Release
Hit http://extras.ubuntu.com oneiric
Release
Hit http://security.ubuntu.com oneiric-security/main
Sources
Hit http://extras.ubuntu.com oneiric/main
Sources
Hit http://security.ubuntu.com oneiric-security/restricted
Sources
Hit http://extras.ubuntu.com oneiric/main i386
Packages
Ign http://extras.ubuntu.com oneiric/main
TranslationIndex
Hit http://security.ubuntu.com oneiric-security/universe
Sources
Hit http://security.ubuntu.com oneiric-security/multiverse
Sources
Hit http://security.ubuntu.com oneiric-security/main i386
Packages
Hit http://security.ubuntu.com oneiric-security/restricted i386
Packages
Hit http://security.ubuntu.com oneiric-security/universe i386
Packages
Hit http://security.ubuntu.com oneiric-security/multiverse i386
Packages
Hit http://security.ubuntu.com oneiric-security/main
TranslationIndex
Hit http://security.ubuntu.com oneiric-security/multiverse
TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted
TranslationIndex
Hit http://security.ubuntu.com oneiric-security/universe
TranslationIndex
Hit http://security.ubuntu.com oneiric-security/main
Translation-en
Hit http://security.ubuntu.com oneiric-security/multiverse
Translation-en
Hit http://security.ubuntu.com oneiric-security/restricted
Translation-en
Hit http://security.ubuntu.com oneiric-security/universe
Translation-en
Ign http://in.archive.ubuntu.com oneiric
InRelease
Ign http://in.archive.ubuntu.com oneiric-updates
InRelease
Ign http://in.archive.ubuntu.com oneiric-backports InRelease
Ign http://extras.ubuntu.com oneiric/main Translation-en_US
Hit http://in.archive.ubuntu.com oneiric Release.gpg
Ign http://extras.ubuntu.com oneiric/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates Release.gpg
Hit http://in.archive.ubuntu.com oneiric-backports Release.gpg
Hit http://in.archive.ubuntu.com oneiric Release
Hit http://in.archive.ubuntu.com oneiric-updates Release
Hit http://in.archive.ubuntu.com oneiric-backports Release
Hit http://in.archive.ubuntu.com oneiric/main Sources
Hit http://in.archive.ubuntu.com oneiric/restricted Sources
Hit http://in.archive.ubuntu.com oneiric/universe Sources
Hit http://in.archive.ubuntu.com oneiric/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric/multiverse i386 Packages
Hit http://in.archive.ubuntu.com oneiric/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/main Sources
Hit http://in.archive.ubuntu.com oneiric-updates/restricted Sources
Hit http://in.archive.ubuntu.com oneiric-updates/universe Sources
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric-updates/main i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/main Sources
Hit http://in.archive.ubuntu.com oneiric-backports/restricted Sources
Hit http://in.archive.ubuntu.com oneiric-backports/universe Sources
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric-backports/main i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse
TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/restricted
TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/universe TranslationIndex
Get:1 http://in.archive.ubuntu.com oneiric/main i386 Packages [1,583 kB]
Hit http://in.archive.ubuntu.com oneiric/main Translation-en
Hit http://in.archive.ubuntu.com oneiric/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric/universe Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/universe Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/universe Translation-en
Fetched 1 B in 8s (0 B/s)
W: Failed to fetch
gzip:/var/lib/apt/lists/partial/in.archive.ubuntu.com_ubuntu_dists_oneiric_main_binary-i386_Packages
Hash Sum mismatch

E: Some index files failed to download. They have been ignored, or old ones
used instead.
jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get install vlc vlc-plugin-pulse
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:
 vlc : Depends: vlc-nox (= 1.1.12-2~oneiric1) but it is not going to be
installed
       Depends: libavcodec53 (>= 4:0.7-1) but it is not going to be
installed or
                libavcodec-extra-53 (>= 4:0.7-1) but it is not going to be
installed
       Depends: libva-x11-1 (> 1.0.12~) but it is not installable
       Depends: libva1 (> 1.0.12~) but it is not installable
       Depends: libxcb-randr0 (>= 1.1) but it is not installable
       Depends: libxcb-xv0 (>= 1.2) but it is not installable
       Recommends: vlc-plugin-notify (= 1.1.12-2~oneiric1) but it is not
going to be installed
 vlc-plugin-pulse : Depends: vlc-nox (= 1.1.12-2~oneiric1) but it is not
going to be installed
E: Unable to correct problems, you have held broken packages.
jagadeesh@jagadeesh-Vostro-1540:~$

sudo apt-get install -f

or in Synaptic, Edit, Fix broken packages.

You need to check that a universe mirror is listed in your /etc/apt/sources.list file.

sudo apt-get install -f didnot work
jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get install -f
[sudo] password for jagadeesh:
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 391 not upgraded.
jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get update
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric InRelease
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/main TranslationIndex
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/restricted TranslationIndex
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/main Translation-en_US
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/main Translation-en
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/restricted Translation-en_US
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/restricted Translation-en
Ign http://extras.ubuntu.com oneiric InRelease
Ign http://in.archive.ubuntu.com oneiric InRelease
Ign http://in.archive.ubuntu.com oneiric-updates InRelease
Ign http://in.archive.ubuntu.com oneiric-backports InRelease
Ign http://security.ubuntu.com oneiric-security InRelease
Hit http://extras.ubuntu.com oneiric Release.gpg
Hit http://in.archive.ubuntu.com oneiric Release.gpg
Hit http://security.ubuntu.com oneiric-security Release.gpg
Hit http://extras.ubuntu.com oneiric Release
Hit http://in.archive.ubuntu.com oneiric-updates Release.gpg
Hit http://security.ubuntu.com oneiric-security Release
Hit http://in.archive.ubuntu.com oneiric-backports Release.gpg
Hit http://extras.ubuntu.com oneiric/main Sources
Hit http://security.ubuntu.com oneiric-security/main Sources
Hit http://in.archive.ubuntu.com oneiric Release
Hit http://extras.ubuntu.com oneiric/main i386 Packages
Ign http://extras.ubuntu.com oneiric/main TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted Sources
Hit http://security.ubuntu.com oneiric-security/universe Sources
Hit http://security.ubuntu.com oneiric-security/multiverse Sources
Hit http://security.ubuntu.com oneiric-security/main i386 Packages
Hit http://security.ubuntu.com oneiric-security/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates Release
Hit http://security.ubuntu.com oneiric-security/universe i386 Packages
Hit http://security.ubuntu.com oneiric-security/multiverse i386 Packages
Hit http://security.ubuntu.com oneiric-security/main TranslationIndex
Hit http://security.ubuntu.com oneiric-security/multiverse TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted TranslationIndex
Hit http://security.ubuntu.com oneiric-security/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports Release
Hit http://in.archive.ubuntu.com oneiric/main Sources
Hit http://in.archive.ubuntu.com oneiric/restricted Sources
Hit http://in.archive.ubuntu.com oneiric/universe Sources
Hit http://in.archive.ubuntu.com oneiric/multiverse Sources
Hit http://security.ubuntu.com oneiric-security/main Translation-en
Hit http://security.ubuntu.com oneiric-security/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric/multiverse i386 Packages
Hit http://in.archive.ubuntu.com oneiric/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/main Sources
Hit http://in.archive.ubuntu.com oneiric-updates/restricted Sources
Hit http://security.ubuntu.com oneiric-security/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/universe Sources
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric-updates/main i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse i386 Packages
Hit http://security.ubuntu.com oneiric-security/universe Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/main Sources
Hit http://in.archive.ubuntu.com oneiric-backports/restricted Sources
Hit http://in.archive.ubuntu.com oneiric-backports/universe Sources
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric-backports/main i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/universe TranslationIndex
Ign http://extras.ubuntu.com oneiric/main Translation-en_US
Get:1 http://in.archive.ubuntu.com oneiric/main i386 Packages [1,583 kB]
Hit http://in.archive.ubuntu.com oneiric/main Translation-en
Hit http://in.archive.ubuntu.com oneiric/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric/universe Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/universe Translation-en
Ign http://extras.ubuntu.com oneiric/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/universe Translation-en
Fetched 1 B in 5s (0 B/s)
W: Failed to fetch gzip:/var/lib/apt/lists/partial/in.archive.ubuntu.com_ubuntu_dists_oneiric_main_binary-i386_Packages Hash Sum mismatch

E: Some index files failed to download. They have been ignored, or old ones used instead.
jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get install vlc vlc-plugin-pulse
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:
 vlc : Depends: vlc-nox (= 1.1.12-2~oneiric1) but it is not going to be installed
       Depends: libavcodec53 (>= 4:0.7-1) but it is not going to be installed or
                libavcodec-extra-53 (>= 4:0.7-1) but it is not going to be installed
       Depends: libva-x11-1 (> 1.0.12~) but it is not installable
       Depends: libva1 (> 1.0.12~) but it is not installable
       Depends: libxcb-randr0 (>= 1.1) but it is not installable
       Depends: libxcb-xv0 (>= 1.2) but it is not installable
       Recommends: vlc-plugin-notify (= 1.1.12-2~oneiric1) but it is not going to be installed
 vlc-plugin-pulse : Depends: vlc-nox (= 1.1.12-2~oneiric1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
jagadeesh@jagadeesh-Vostro-1540:~$

i have sources.list file in /etc/apt/

what is synaptic and where can i find it

sudo apt-get install -f <then package name you want to install >

Press window button and type synaptic :: you will find synaptic manager

provide output of /etc/apt/sources.list

thanks

Jeet

1. In Synaptic, go to Settings->Repositories, and in "Ubuntu Software"
tab, make sure the first four options are selected.

2. Then, go to the "Other Software" tab, and make sure the first
(Canonical Partners) and third (Independent) options are selected.

3. Press the Close button to close the dialog.

4. Press the Reload button to reload the repositories info.

5. Try installing the package you want, in Synaptic.

i have typed synaptic in dash home search bar and i couldn't find synaptic

Try running these commands one at a time if changing the sever fails.
sudo dpkg --configure -a
sudo apt-get clean
sudo apt-get autoclean
sudo apt-get update

then try installing

if this also not helpful try below

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

update us if it works or not

it didn't work

jagadeesh@jagadeesh-Vostro-1540:~$ sudo dpkg --configure -a
[sudo] password for jagadeesh:
jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get clean
jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get autoclean
Reading package lists... Done
Building dependency tree
Reading state information... Done
jagadeesh@jagadeesh-Vostro-1540:~$ sudo apt-get update
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric InRelease
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/main TranslationIndex
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/restricted TranslationIndex
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/main Translation-en_US
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/main Translation-en
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/restricted Translation-en_US
Ign cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012) oneiric/restricted Translation-en
Ign http://extras.ubuntu.com oneiric InRelease
Ign http://archive.canonical.com oneiric InRelease
Ign http://security.ubuntu.com oneiric-security InRelease
Ign http://in.archive.ubuntu.com oneiric InRelease
Ign http://in.archive.ubuntu.com oneiric-updates InRelease
Ign http://in.archive.ubuntu.com oneiric-backports InRelease
Hit http://extras.ubuntu.com oneiric Release.gpg
Hit http://archive.canonical.com oneiric Release.gpg
Hit http://security.ubuntu.com oneiric-security Release.gpg
Hit http://in.archive.ubuntu.com oneiric Release.gpg
Hit http://in.archive.ubuntu.com oneiric-updates Release.gpg
Hit http://extras.ubuntu.com oneiric Release
Hit http://archive.canonical.com oneiric Release
Hit http://security.ubuntu.com oneiric-security Release
Hit http://in.archive.ubuntu.com oneiric-backports Release.gpg
Hit http://in.archive.ubuntu.com oneiric Release
Hit http://extras.ubuntu.com oneiric/main Sources
Hit http://archive.canonical.com oneiric/partner i386 Packages
Hit http://security.ubuntu.com oneiric-security/main Sources
Hit http://in.archive.ubuntu.com oneiric-updates Release
Hit http://in.archive.ubuntu.com oneiric-backports Release
Hit http://extras.ubuntu.com oneiric/main i386 Packages
Ign http://extras.ubuntu.com oneiric/main TranslationIndex
Ign http://archive.canonical.com oneiric/partner TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted Sources
Hit http://security.ubuntu.com oneiric-security/universe Sources
Hit http://security.ubuntu.com oneiric-security/multiverse Sources
Hit http://security.ubuntu.com oneiric-security/main i386 Packages
Hit http://security.ubuntu.com oneiric-security/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric/main Sources
Hit http://in.archive.ubuntu.com oneiric/restricted Sources
Hit http://in.archive.ubuntu.com oneiric/universe Sources
Hit http://in.archive.ubuntu.com oneiric/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric/restricted i386 Packages
Hit http://security.ubuntu.com oneiric-security/universe i386 Packages
Hit http://security.ubuntu.com oneiric-security/multiverse i386 Packages
Hit http://security.ubuntu.com oneiric-security/main TranslationIndex
Hit http://security.ubuntu.com oneiric-security/multiverse TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric/multiverse i386 Packages
57% [Waiting for headers] [Waiting for headers] [Waiting for headers] [Waiting ^Hit http://in.archive.ubuntu.com oneiric/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/main Sources
Hit http://in.archive.ubuntu.com oneiric-updates/restricted Sources
Hit http://security.ubuntu.com oneiric-security/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/universe Sources
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric-updates/main i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/restricted i386 Packages
Hit http://security.ubuntu.com oneiric-security/main Translation-en
Hit http://security.ubuntu.com oneiric-security/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse i386 Packages
Hit http://in.archive.ubuntu.com oneiric-updates/main TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted Translation-en
Hit http://security.ubuntu.com oneiric-security/universe Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-updates/universe TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/main Sources
Hit http://in.archive.ubuntu.com oneiric-backports/restricted Sources
Hit http://in.archive.ubuntu.com oneiric-backports/universe Sources
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse Sources
Hit http://in.archive.ubuntu.com oneiric-backports/main i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/restricted i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/universe i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse i386 Packages
Hit http://in.archive.ubuntu.com oneiric-backports/main TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/restricted TranslationIndex
Hit http://in.archive.ubuntu.com oneiric-backports/universe TranslationIndex
Get:1 http://in.archive.ubuntu.com oneiric/main i386 Packages [1,583 kB]
Ign http://extras.ubuntu.com oneiric/main Translation-en_US
Hit http://in.archive.ubuntu.com oneiric/main Translation-en
Hit http://in.archive.ubuntu.com oneiric/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric/universe Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/multiverse Translation-en
Ign http://extras.ubuntu.com oneiric/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-updates/restricted Translation-en
Ign http://archive.canonical.com oneiric/partner Translation-en_US
Hit http://in.archive.ubuntu.com oneiric-updates/universe Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/main Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/multiverse Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/restricted Translation-en
Hit http://in.archive.ubuntu.com oneiric-backports/universe Translation-en
Ign http://archive.canonical.com oneiric/partner Translation-en
Fetched 1 B in 6s (0 B/s)
W: Failed to fetch gzip:/var/lib/apt/lists/partial/in.archive.ubuntu.com_ubuntu_dists_oneiric_main_binary-i386_Packages Hash Sum mismatch

E: Some index files failed to download. They have been ignored, or old ones used instead.
jagadeesh@jagadeesh-Vostro-1540:~$

Did you tried second solution ??

http://askubuntu.com/questions/91543/apt-get-update-fails-to-fetch-files-temporary-failure-resolving-error

I think here you can find many thing which can be useful for you .. hope this time it is helpful for you

Thanks

Jeet

i can't find synaptic manager anywhere.
is there any other name for it?

deb cdrom:[Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)]/ oneiric ma$

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://in.archive.ubuntu.com/ubuntu/ oneiric main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ oneiric main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ oneiric universe
deb-src http://in.archive.ubuntu.com/ubuntu/ oneiric universe
deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates universe
deb-src http://in.archive.ubuntu.com/ubuntu/ oneiric-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://in.archive.ubuntu.com/ubuntu/ oneiric multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ oneiric multiverse
deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted univ$
deb-src http://in.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted $

deb http://security.ubuntu.com/ubuntu oneiric-security main restricted
deb-src http://security.ubuntu.com/ubuntu oneiric-security main restricted
deb http://security.ubuntu.com/ubuntu oneiric-security universe
deb-src http://security.ubuntu.com/ubuntu oneiric-security universe
deb http://security.ubuntu.com/ubuntu oneiric-security multiverse
deb-src http://security.ubuntu.com/ubuntu oneiric-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu oneiric partner
# deb-src http://archive.canonical.com/ubuntu oneiric partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu oneiric main
deb-src http://extras.ubuntu.com/ubuntu oneiric main

this is the output of /etc/apt/sources.list
is there anything wrong?

Can you give the output of:

apt-cache policy vlc

Thanks

jagadeesh@jagadeesh-Vostro-1540:~$ apt-cache policy vlc
vlc:
  Installed: (none)
  Candidate: 1.1.12-2~oneiric1
  Version table:
     1.1.12-2~oneiric1 0
        500 http://in.archive.ubuntu.com/ubuntu/ oneiric-updates/universe i386 Packages
     1.1.11-2build2 0
        500 http://in.archive.ubuntu.com/ubuntu/ oneiric/universe i386 Packages

ok. Try:

sudo apt-get --purge remove vlc
sudo apt-get --purge autoremove
sudo apt-get clean
sudo apt-get udpate
clear
sudo apt-get install vlc

Is it ok? If not, poast the result of the last command.

Thanks

jagadeesh@jagadeesh-Vostro-1540:/etc/apt$ sudo apt-get install vlc
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:
 vlc : Depends: vlc-nox (= 1.1.12-2~oneiric1) but it is not going to be installed
       Depends: libavcodec53 (>= 4:0.7-1) but it is not going to be installed or
                libavcodec-extra-53 (>= 4:0.7-1) but it is not going to be installed
       Depends: libva-x11-1 (> 1.0.12~) but it is not installable
       Depends: libva1 (> 1.0.12~) but it is not installable
       Depends: libxcb-randr0 (>= 1.1) but it is not installable
       Depends: libxcb-xv0 (>= 1.2) but it is not installable
       Recommends: vlc-plugin-notify (= 1.1.12-2~oneiric1) but it is not going to be installed
       Recommends: vlc-plugin-pulse (= 1.1.12-2~oneiric1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
jagadeesh@jagadeesh-Vostro-1540:/etc/apt$

try:

wget https://launchpad.net/ubuntu/+source/vlc/1.1.12-2~oneiric1/+build/2864740/+files/vlc-nox_1.1.12-2%7Eoneiric1_i386.deb

sudo dpkg -i ./vlc-nox_1.1.12-2%7Eoneiric1_i386.deb

rm ./vlc-nox_1.1.12-2%7Eoneiric1_i386.deb

is it compulsary to install all the updates(important security updates,recommended update,backports,distribution updates,etc.),available in the update manager, after installing the operating system to make use of other softwares(vlc,flash player plugin,skype etc.)?

Andrew there is problem with all third party software.. nd jagdheesh also
reporting about synaptic
I think there is problem with repositry..
What you think?
On Apr 11, 2012 11:10 AM, "jagadeesh babu chitta" <
<email address hidden>> wrote:

> Question #193167 on apt in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/apt/+question/193167
>
> Status: Answered => Open
>
> jagadeesh babu chitta is still having a problem:
> is it compulsary to install all the updates(important security
> updates,recommended update,backports,distribution
> updates,etc.),available in the update manager, after installing the
> operating system to make use of other softwares(vlc,flash player
> plugin,skype etc.)?
>
> --
> You received this question notification because you are a direct
> subscriber of the question.
>

jagadeesh@jagadeesh-Vostro-1540:~/Downloads$ sudo dpkg -i ./vlc-nox_1.1.12-2%7Eoneiric1_i386.deb
[sudo] password for jagadeesh:
dpkg: error processing ./vlc-nox_1.1.12-2%7Eoneiric1_i386.deb (--install):
 cannot access archive: No such file or directory
Errors were encountered while processing:
 ./vlc-nox_1.1.12-2%7Eoneiric1_i386.deb
jagadeesh@jagadeesh-Vostro-1540:~/Downloads$ sudo dpkg -i ./vlc-nox_1.1.12-2~oneiric1_i386.deb
Selecting previously deselected package vlc-nox.
(Reading database ... 124954 files and directories currently installed.)
Unpacking vlc-nox (from .../vlc-nox_1.1.12-2~oneiric1_i386.deb) ...
dpkg: dependency problems prevent configuration of vlc-nox:
 vlc-nox depends on liba52-0.7.4; however:
  Package liba52-0.7.4 is not installed.
 vlc-nox depends on libass4 (>= 0.9.7); however:
  Package libass4 is not installed.
 vlc-nox depends on libavcodec53 (>= 4:0.7-1) | libavcodec-extra-53 (>= 4:0.7-1); however:
  Package libavcodec53 is not installed.
  Package libavcodec-extra-53 is not installed.
 vlc-nox depends on libavformat53 (>= 4:0.7-1) | libavformat-extra-53 (>= 4:0.7-1); however:
  Package libavformat53 is not installed.
  Package libavformat-extra-53 is not installed.
 vlc-nox depends on libavutil51 (>= 4:0.7-1) | libavutil-extra-51 (>= 4:0.7-1); however:
  Package libavutil51 is not installed.
  Package libavutil-extra-51 is not installed.
 vlc-nox depends on libcddb2; however:
  Package libcddb2 is not installed.
 vlc-nox depends on libdc1394-22; however:
  Package libdc1394-22 is not installed.
 vlc-nox depends on libdca0; however:
  Package libdca0 is not installed.
 vlc-nox depends on libdirac-encoder0; however:
  Package libdirac-encoder0 is not installed.
 vlc-nox depends on libdvbpsi7 (>= 0.2.0); however:
  Package libdvbpsi7 is not installed.
 vlc-nox depends on libdvdnav4; however:
  Package libdvdnav4 is not installed.
 vlc-nox depends on libdvdread4; however:
  Package libdvdread4 is not installed.
 vlc-nox depends on libebml3; however:
  Package libebml3 is not installed.
 vlc-nox depends on libfaad2; however:
  Package libfaad2 is not installed.
 vlc-nox depends on libkate1 (>= 0.3.0); however:
  Package libkate1 is not installed.
 vlc-nox depends on libmad0 (>= 0.15.1b-3); however:
  Package libmad0 is not installed.
 vlc-nox depends on libmatroska4; however:
  Package libmatroska4 is not installed.
 vlc-nox depends on libmodplug1; however:
  Package libmodplug1 is not installed.
 vlc-nox depends on libmpcdec6 (>= 1:0.1~r435); however:
  Package libmpcdec6 is not installed.
 vlc-nox depends on libmpeg2-4; however:
  Package libmpeg2-4 is not installed.
 vlc-nox depends on libpostproc52 (>= 4:0.7-1) | libpostproc-extra-52 (>= 4:0.7-1); however:
  Package libpostproc52 is not installed.
  Package libpostproc-extra-52 is not installed.
 vlc-nox depends on libschroedinger-1.0-0 (>= 1.0.7); however:
  Package libschroedinger-1.0-0 is not installed.
 vlc-nox depends on libswscale2 (>= 4:0.7-1) | libswscale-extra-2 (>= 4:0.7-1); however:
  Package libswscale2 is not installed.
  Package libswscale-extra-2 is not installed.
 vlc-nox depends on libtwolame0; however:
  Package libtwolame0 is not installed.
 vlc-nox depends on libupnp3 (>= 1.4.3); however:
  Package libupnp3 is not installed.
 vlc-nox depends on libvcdinfo0 (>> 0.7.23); however:
  Package libvcdinfo0 is not installed.
 vlc-nox depends on libvlc5 (>= 1.1.1); however:
  Package libvlc5 is not installed.
 vlc-nox depends on libvlccore4 (>= 1.1.0); however:
  Package libvlccore4 is not installed.
 vlc-nox depends on libx264-116; however:
  Package libx264-116 is not installed.
dpkg: error processing vlc-nox (--install):
 dependency problems - leaving unconfigured
Processing triggers for man-db ...
Errors were encountered while processing:
 vlc-nox
jagadeesh@jagadeesh-Vostro-1540:~/Downloads$

it didn't workout

Did you download the deb I gave....

Possibly an issue with the server. Try again a bit later, see how it goes.

Temporary failure resolving …” means that your DNS, i.e. the translation from host names to IP addresses, is not working. Did you reconfigure something on your machine recently? If not, this may be a transient error at your ISP.

Does ping -n 8.8.8.8 show lines like 64 bytes from 8.8.8.8: …? (Press Ctrl+C to stop ping.)

If it doesn't, you specifically have an IP connectivity problem. Run "traceroute -n 8.8.8.8" and see where it stops: if it's in your home/office, check your networking equipment. If you can reach your ISP, complain to them.

If it does, you specifically have a DNS problem. Check the contents of /etc/resolv.conf; there should be a line like "nameserver 1.2.3.4" (possibly more than one of them). If the lines are there, there is probably a transient problem within your ISP, and you may be able to work around it by adding "nameserver 8.8.8.8" to that file (this declares an extra DNS server, which is provided free of charge by Google)

Thanks actionparsnip, that solved my question.

thanks a lot mr.jeet,mr.andrew