Advanced Packaging Tool, the package manager for Debian-based distributions. It is also the most used tool for installing packages in Ubuntu. Questions about using any of the apt tools should use this tag.

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“Unmet Dependencies” when trying to install vlc (via Software Center) [duplicate]

I am trying to install vlc media player (Ubuntu 14.04), but when I write in terminal "sudo apt-get install vlc", or trying to install via Software Center, this is what I get: The following packages ...
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39 views

How to install a fingerprint reader on Lenovo ThinkPad with ubuntu 14.04

I have a Lenovo-ThinkPad which came with a fingerprint reader, I'm using Ubuntu 14.04 and I have no idea how to enable it. I already tried: sudo add-apt-repository ppa:fingerprint/fingerprint-gui ...
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Err http://mirror.rackspace.com/ubuntu/ Unable to fetch some archives

Ubuntu 12.04.4 LTS server on Rackspace After apt-get update, I ran the upgrade and got this: # apt-get upgrade Reading package lists... Done Building dependency tree Reading state ...
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30 views

Cannot solve GPG error

I ran sudo apt-get update and at the end I have these errors: Fetched 14,3 kB in 54s (264 B/s) Reading package lists... Done W: GPG error: http://archive.canonical.com saucy Release: The following ...
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19 views

Spotify installed packages have unmet dependencies [duplicate]

I used wine to emulate the Windows version of Spotify and I recently just uninstalled it and ever since then, when I start up my Ubuntu, after a while I will get this restricted logo beside the wifi ...
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1answer
18 views

Packages go missing after bootup and certain indicators don't seem to install anymore

I'm running an up-to-date Ubuntu 14.04, which I frankenstein'd into Xubuntu and up to this point it's been working just fine. When I booted my computer up today, I noticed that a few icons on my dock ...
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1answer
35 views

Half installed package nightmare

At some point, one of my servers stopped writing to its network attached storage device (I presume), and it resulted in a week or more's worth of packages ending up in the "half-installed" state. ...
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19 views

Complete Deletion/Reinstallation of Downloaded Package

I want to know how to delete every file installed by a package using either aptitude or apt-get and then re-download and re-install that package completely again. I've tried doing aptitude reinstall ...
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1answer
34 views

Ubuntu 14.04 The package lists or status file could not be parsed or opened [duplicate]

I have a problem with the software updater, the synaptic package manager and the ubuntu software center. When I use the terminal to update, I receive the following error: Reading package lists... ...
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Ubuntu Software Center not downloading programs at all? [closed]

I'm trying to download programs from the ubuntu software center but when i try to download something it gives me a error. "Requires installation of untrusted packages", I have tried changing my server ...
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Ubuntu 13.1 apt-get installs fails with every install/remove command inux-image-3.11.0-26-generic

including sudo apt-get --purge autoremove etc and after trying sudo apt-get clean, autoclean, dpkg reconfigure etc I've been around this problem for days, read everything I could find there, or other ...
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40 views

Problem With update Repository in ubuntu [closed]

I changed Download Server from Software & update then I try to update repository with sudo apt-get update, but the result Was an error: Please Help me To solve it.... .Thanks.
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37 views

The package system is broken… unmet dependencies [duplicate]

Some will say this is duplicate but it is not :) Basically, I am running Ubunto 14.04 LTS and I removed LibreOffice to install OpenOffice. Then I was trying to re-install Libre again (so that I have ...
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93 views

Ubuntu 12.10 isn't updating (failed to fetch) [duplicate]

I'm trying to update my Ubuntu, but it isn't working correctly. I type: sudo apt-get update And the following error is being returned to me: ... W: Failed to fetch ...
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Cannot update, no package? Software centre not working. Computer is in German [duplicate]

Bitte melden Sie einen Fehler im Paket »update-manager« und fügen Sie die folgende Fehlermeldung an den Fehlerbericht an: E:Encountered a section with no Package: header, E:Problem with MergeList ...
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1answer
33 views

install package from ubuntu dvd

I want to install some package from ubunu 14.04 LTS dvd. Below is what I did. Could anyone please point out what was missing? root@ubunto:~# mount ~/ubuntu-14.04-desktop-amd64.iso /tmpmt -o loop ...
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21 views

Unable to restart the system after installation of nvidia driver331.89

Installation of nvidia drivers is very important to me as I want to do molecular dynamics. I have been struggled for three months. I have have tried these command to uninstall and re-installation: ...
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41 views

apt-get not working even after updating apt.conf

I have configured my apt.conf file correctly. Still sudo apt-get update is giving me this error: 407 Proxy Authentication Required In /etc/apt/apt.conf, I have this: Acquire::http::Proxy ...
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1answer
40 views

Uninstalled vim, now can't install it again

I have removeded vim-tiny to get full installation following this tutorial and now I can't install vim by: $ sudo apt-get install vim Reading package lists... Done Building dependency tree ...
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2answers
29 views

wget security.ubuntu.com not working on ubuntu

We are able to use wget for other URLs, such as google.com, but wget security.ubuntu.com not working and giving output: Resolving security.ubuntu.com (security.ubuntu.com)... 91.189.92.200, ...
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22 views

How do I uninstall ttf-mscorefonts while it is currently 'half installed'?

I tried using this as a step to watching Netflix. The package itself is half installed or something and removing or purging or reinstalling it doesn't seem to do anything. It won't let me remove it ...
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1answer
30 views

How to copy all “apt-get update” cache

How can I copy all apt-get update cache to another computer, so that it doesn't need be updated again and again after new installation?
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28 views

add-apt-repository hangs

When trying to add a repository using the command sudo add-apt-repository ppa:xorg-edgers/ppa the command just hangs after I type in my password, and then after a couple of minutes gives me the ...
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30 views

Type 'dep' is not known [closed]

E: Type 'dep' is not known on line 1 in source list /etc/apt/sources.list.d/ia32-libs-raring.list I tried: gksudo gedit /etc/apt/sources.list sudo apt-get update But I had the same thing.
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46 views

Upgrade 13.04 to 13.10 - packages now unavailable [duplicate]

I'm trying to follow these instructions Ubuntu Servers (Recommended) Install update-manager-core if it is not already installed: sudo apt-get install update-manager-core Launch the upgrade ...
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31 views

By mistake I removed Python. Terminal, music player, video player, Software Center etc. are gone

I work on Ubuntu 14.04 to install Python and other packages I entered the following command : sudo apt-get install python python-pip python-pyparsing python-mysqldb gunicorn nginx git-core ipython ...
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libreoffice reinstall problems

How a tiny problem turned into a big one. Summary of what I've done so far: Details are here I recently upgraded from Kubuntu Precise (with backports, including the LO PPA) to Trusty with backports. ...
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1answer
31 views

Adding a .tar.bz package to my local repository? [duplicate]

I downloaded a software package in a .tar.bz file. I understand that I can install such packages through make install, but then there's no easy way to uninstall. Is there a way that I can add this ...
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15 views

Graphic driver don't work correctly, system kernel stays at 3.11.0-20

Yesterday I updated graphic driver automatically and today my system don't boot correctly. I could get to the login screen but after enter password system shows an error message and shows nothing. ...
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56 views

Unable to reinstall apache on Ubuntu 12.04.5 LTS

Unfortunately, What I did: Updated apt repository to install apache244 and installed it. Uninstalled apache2.4 using following commands: apt-get remove apache* apt-get purge apache* apt-get clean ...
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2answers
35 views

Installing node with apt-get or downloading the Linux Binaries (.tar.gz)

What is the difference between installing node.js with 'sudo apt-get install nodejs' or downloading the Linux Binaries (.tar.gz) and following these instructions? Is the outcome the same?
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ppa repositories removed for raring. How do you install packages using old-releases.ubuntu.com [duplicate]

Using a Ubuntu/Debian variant (Navigatrix) release based on Raring, which is no longer supported in the Ubuntu Repositories. Current etc/apt/source.list is: deb (http removed) ...
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Add Package to Official Repository [duplicate]

I wrote a driver for a remote filesystem (mounts a Google Drive, similar to the way SSHFS mounts a remote server). It's super useful as an alternative to dropbox or ubuntuone. It is now getting ...
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19 views

How can I determine the minimal installation set for a list of packages? [duplicate]

I have some installation notes for installing the GLEW libraries for development purposes. They read: Install everything with "glew" in its name. This means I currently run: sudo apt install ...
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1answer
21 views

I can not install or remove apps After trying to install bumblebee and nvidia prime

Here are the details which terminal output when trying to remove or upgrade I tried autoremove - install configure dpkg and nothings work for me Removing nvidia-331 (331.89-0ubuntu1~xedgers14.04.2) ...
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Why does apt-get abort by itself, as though I'd pressed 'N'?

On Ubuntu 14.04, when I try to install an app or even just do: sudo apt-get upgrade I always end up with this message at the end: Do you want to continue? [Y/n] Abort. I didn't type anything, it ...
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27 views

After trying to fix sound “Unable to correct problems” error [duplicate]

I have been trying to get sound working on 14.04. It looks like now I've done something even worse, after following: http://ubuntuforums.org/showthread.php?t=1316634 I tried to do the following ...
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1answer
23 views

How To Create A Custom ErrorDocument Page In Ubuntu 14.04?

I am new to Ubuntu and I am using Ubuntu Server 14.04. Now I want to use my own design HTML web pages as my server status errors like on 404 etc. I tried my own way but not getting my designed page ...
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1answer
17 views

How to diagnose package dependancies?

I want to install postfixadmin on trusty. I'm confused about dependencies. http://packages.ubuntu.com/trusty/postfixadmin shows (I think) that it needs apache2 OR lighttpd OR the httpd to be ...
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1answer
36 views

Dropbox causes software center problems

installed dropbox via software center. ''applying changes'' or when pressing 'x' button, then ''cancellation'' last forever! Even after restarting comp. Removing dropbox via software center lasta ...
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Cannot install Java [duplicate]

here is the deal i keep getting this whenever i put in sudo apt-get install openjdk-7-jre openjdk-7-jdk but it never works it always comes up as sudo apt-get install openjdk-7-jre openjdk-7-jdk ...
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2answers
48 views

What's the official method for checking integrity of a source package? [duplicate]

I want to add a feature to pam, and I figured a good starting point was to download the libpam-modules source. On download, I notice this warning: gpgv: Can't check signature: public key not found ...
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94 views

i've jus got ubuntu 14.04 i changed from google chrome(i hav a chromebook) and im finding it hard installing NFS world

it says i have unmet dependicies and so forth i tried getting wine but that was unsuccessful aswell...can sumone help me please user@chrubuntu:~$ sudo apt-get install wine Reading package lists... ...
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2answers
47 views

What is the need to upgrade Ubuntu? Can not install packages [duplicate]

I am using Ubuntu 13.04. I don't take the software updates that my system prompts me to. Is there any use to upgrade my system to the latest ubuntu. The reason I ask this is that when I do sudo ...
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1answer
60 views

sudo apt-get gives 404 error. Ubuntu 13.04 [duplicate]

Whenever I type sudo apt-get <option> in my terminal, whether it be update,upgrade, or install, it always gives 404 Not Found [IP: 91.189.91.13 80] and ends with E: Aborting Install. I use ...
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Downgrade all external packages to the official ones

Let's say I installed bunch of packages from external PPA repositories and they modified or replaced the existing default packages in the system. Assume that then I remove those PPAs from the ...
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2answers
98 views

“No suitable download server found” [duplicate]

I bumped into the problem that I can't download any updates or new packages. I had this problem before which I could solve through several steps sudo rm /var/lib/apt/lists/* -vf sudo apt-get clean ...
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1answer
30 views

Unmet dependencies problem on 12.04 - libcurl4-openssl-dev depends librtmp-dev

I'm having troubles with unmet dependencies on Ubuntu 12.04: libcurl4-openssl-dev depends librtmp-dev Here is what I've got after running sudo apt-get -f install which suggested running apt-get ...
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19 views

git-cola not working in ubuntu 14.04

I have ubuntu 14.04 installed on my laptop. I installed git-cola. Installation is smooth with apt0get install git-cola. When I open git-cola from launcher, it ask to open/clone a repository. I gave ...
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1answer
14 views

How to transfer the apt keyring to another computer

I'm currently moving my installation of Ubuntu from one laptop to another. Both laptops run Ubuntu 14.04. I moved my /etc/apt/sources.list, the contents of my home directory, and installed all ...