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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Backup software sources and reinstall: get latest versions of installed programs from the repository for new distribution

I'm migrating from 12.04 to 14.04. I have already backed up my installed software sources in 12.04 using sudo cp -R /etc/apt/sources.list* ~/ command from this question - Best way to backup all ...
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How to fix a Failed Package Operation Error?

Launched the software center and I am getting this error: installArchives() failed: E: Invalid archive signature E: Internal error, could not locate member control.tar.{gzbz2xzlzma} E: Prior ...
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1answer
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Can't use Ubuntu Software Center or update Ubuntu 14.04

I can't seem to be able to install anything with the Ubuntu Software Center or update my Ubuntu version. When I run sudo apt-get -f install this is the output: matt@Bessie:~$ sudo apt-get -f install ...
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2answers
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Purging “xfce4-notifyd” purges “ubuntustudio-desktop” with it. Why? How to avoid this if possible

I want to remove xfce4-notifyd; this package makes the notifications look different and removing it restores the normal notifications. I tried sudo apt-get purge xfce4-notifyd but it says it will ...
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Unable To Update or Install from apt-get [duplicate]

I can't get apt-get to work. It returns this error E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists ...
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2answers
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“you have held broken package” While trying to install R

I know this question has already been asked, but all the answer posted weren't able to help solve my problem. I tried the following command on Ubuntu 14.04: sudo apt-get install r-base-core and I ...
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apt-get update, apt-get install not working [duplicate]

I installed ubuntu server 14.04 on virtual box and installed LAMP, webmin and FTP then suddenly i could not install any thing else because the initiation to connect to us.archive.ubuntu.com is not ...
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53 views

Failed to load the package list Ubuntu 14.04

When attempting to install sublime text 3, I get this message. Failed to load the package list This is a serious problem. Try again later. If this problem appears again, please report an error to the ...
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2answers
145 views

Error :: You must put some 'source' URIs in your sources.list

I'm trying to install PIL a python module on ubuntu I first need to install a package called python-imaging using the following command sudo apt-get build-dep python-imaging When I try and do ...
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2answers
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Vim installation in Ubuntu 14.04

I am unable to install Vim and need help. I've tried the following: root@cbitlab1:/home/cbitlib1# sudo -s root@cbitlab1:/home/cbitlib1# apt-get install vim Reading package lists… Done Building ...
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1answer
48 views

Can a ppa repository be added to /etc/apt/source.list?

By sudo add-apt-repository '<deb url codename component>', a repository is added to the /etc/apt/source.list file. By sudo add-apt-repository ppa:<user>/<ppa-name>, I saw that all ...
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How to install android studio?

I have used the following command to install android studio to Ubuntu: sudo apt-get install android-studio However, the following message appears : E: dpkg was interrupted, you must manually run ...
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How to find out which package a particular file under /usr/share came from? [duplicate]

How do I find out which (apt-get-installed) package a particular file came from?
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38 views

Why my apache service does not work correctly?

I am just a newbie using Ubuntu 12.04 LTS. In the beginning, I just want to install mcrypt, I followed this solution: cd /etc/php5/mods-available ln -sf ../conf.d/mcrypt.ini . php5enmod mcrypt ...
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1answer
22 views

How do Remap-* statements work in apt-cacher-ng?

I've just started using apt-cacher-ng to cache my apt-get downloads. Whenever I start it I get this error: WARNING: No URL list file matching file:backends_gentoo found in config or support ...
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update-initramfs hangs on cuda drivers, how to remove / complete update?

I was trying to "apt-get install cuda" from nvidia's repository, and the process hung on update-initramfs. All apt/dpkg commands I've since tried, including "apt-get remove cuda", have attempted to ...
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apt-get autoremove: getting error and not “autoremove” anything

Please need some help to fix this error when i run apt-get autoremove. Everthing that i do with apt-get i get the same error. Can help me? Thanks, A ler as listas de pacotes... Pronto A construir ...
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1answer
32 views

Package 'libdconf0' has no installation candidate [on hold]

My system settings do not persist. I have been trying to set system wide proxy settings. BUt once I set it and if I open the settings dialogue again, the last saved settings vanish. I tried setting ...
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1answer
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Having some trouble authenticating via proxy in order to use apt-get successfully on a corporate network

Apologies if this is a basic question, I've recently taken ownership of our department's internal server so I'm having to deal with issues beyond my (very basic) knowledge. Context Our server is ...
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2answers
89 views

Cannot remove (or reinstall) Spotify or any other program

I had install Spotify a while back but since deleted some folder belonging to it (accidental rm- rf operation - sh*t happens). I now can't install any software at all via apt-get (pip works fine) ...
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1answer
43 views

GTK: Warning cannot display

I just upgraded from 13.10 to 14.04 and I am experiencing problems with my dependencies as follows sudo apt-get install gives You might want to run apt-get -f install to correct these. The ...
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1answer
19 views

Prevent package manager recreating files in /etc/fonts/conf.d/

I use a bitmap font for my terminal windows. In order for this to work, I need to enable bitmap fonts. In /etc/fonts/conf.d/ there's a symlink called 70-no-bitmaps.conf to the matching configuration ...
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“unable to make backup link of `./usr/share/tomcat7/bin/daemon.sh' before installing new version: Operation not permitted”

I've ran this many times but today it seems to be failing first: sudo apt-get update That works successfully. Running apt-get install fails when trying to back up the daemon.sh sudo apt-get ...
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Having problems installing draftsight on ubuntu 14.04

I installed ubuntu 14.04 64b and I'm struggling to install draftsight latest version. I tried to install it on the Ubuntu software center. But no luck. Appears an error: **Dependency is not ...
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1answer
183 views

apt-get upgrade fails with “adduser: The user `messagebus' already exists. Exiting.”

Got this today when trying to upgrade the software on my Ubuntu 12.04 Server: # apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, ...
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33 views

Dpkg error processing for installing packages

I want to install any packages but when I use apt-get install I have the following error: Reading package lists... Done Building dependency tree Reading state information... Done htop is ...
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2answers
21 views

Unmet Dependencies while Installing default-jre [duplicate]

I am getting the following error while trying to install default-jre. How can I solve this issue? Reading package lists... Done Building dependency tree Reading state information... Done Some ...
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17 views

dropbear failed to restart

I have been got this when I use at-get dist-upgrade :: ahmad@elvina-TA890GXE:~$ sudo apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... ...
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Are there any good application for making documentation availbable in the apt repository?

I'm looking for a program to create source code and project documentation. It needs to support code snippets, tables, indexing, export to HTML and PDF, and latex support would also be a plus. It ...
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2answers
45 views

Find and download a package without sudo using aptitude [duplicate]

I would like to install a bunch of packages (glogg, libprotobuf7, libleveldb1, libsnappy1, libhdf5-7) on an Ubuntu system on which I do not have root privileges. (I understand that this can be ...
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1answer
68 views

“Method gave invalid 400 URI Failure message” when running “apt-get update”

When I use the command sudo apt-get update I get the error message Method gave invalid 400 URI Failure message. The odd thing is every time I use the command it crashes at a different spot. For ...
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Can't download apps through the software center [duplicate]

I'm new to ubuntu , I'm using the latest version. I've been trying to download apps from the software center but I keep getting this error notification(below). Can anybody tell me how to fix this ...
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1answer
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Does apt 1.0 supports search patterns like aptitude?

aptitude search ~ipackage will search for installed package only. Can apt 1.0 (i.e. standalone apt, not apt-cache, dpkg or any else) do that?
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1answer
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Can't add software source

I 've tried to add software source but "add source" button is unavialable.I can't click on it. I 've tried also to add source by using command line but it's not useful sudo‬‬ ...
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Broken packages and unmet dependencies installing htk

I'm trying to install HTK 3.4.1 on Ubuntu 12.04, 64-bit machine. The ./configure command executes without any errors, but when I try to build using the make all command, it shows the following error: ...
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1answer
66 views

Update Error in Ubuntu 14.04 [duplicate]

When I'm running sudo apt-get update I am getting following errors/exceptions. Give me some solutions.. W: Failed to fetch http://mirror.kavalinux.com/ubuntu/dists/trusty/multiverse/source/Sources ...
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1answer
17 views

E: Package 'xgraph' has no installation candidate [duplicate]

I want to install ns2 on my Ubuntu 12.04. As usual am trying to install some essential software before installing it. I tried to install: sudo apt-get install perl xorg-dev g++ xgraph libxt-dev ...
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Difference between apt-cacher and apt-cacher-ng

What exactly is the difference between apt-cacher and apt-cacher-ng? I can't seem to find anywhere comparing the two. I've found tutorials and manuals on both of them, and they seem to be the same ...
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4answers
62 views

How To Download APT And All It's Dependencies?

I'm trying to download APT and all it's dependencies so I can use dpkg to install APT offline. Since you can't simply use apt-get download apt the approach I've taken is trying to generate a list of ...
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1answer
70 views

sudo dpkg-reconfigure foo

many and many and many times I see sudo dpkg-reconfigure foo what is that? seems to be configuration? but what is the relation between that and .conf file? is there any file which store this ...
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1answer
85 views

'Update Information Is Outdated' related to failed installation of apt-fast

I recently subscribed to Linux Format, and in the Aug. 2014 issue ('Fix Ubuntu') they recommended apt-fast to install software faster: $ sudo add-apt-repository ppa:apt-fast/stable $ sudo apt-get ...
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E: Type 'ports' is not known on line 37 in source list /etc/apt/sources [duplicate]

Is using Ubuntu 14.04 and I am facing this error when am trying to update with: sudo apt-get clean && sudo apt-get update E: Type 'ports' is not known on line 37 in source list ...
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1answer
72 views

How to solve “Extra junk at end of file” syntax error in “01autoremove-kernels” file? // invalid characters

I've read How to solve "Extra junk at end of file" when using apt? and though it's a similar problem, it apparently has a different cause since, looking at the contents of the file, unlike ...
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1answer
20 views

Why cant the terminal locate and install Acetoneiso_2.3.tar.gz.?

The package is on my desktop cd Desktop parallels@LouiseAvon:~/Desktop$ sudo apt-get install acetoneiso_2.3.tar.gz [sudo] password for parallels: Reading package lists... Done Building dependency ...
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2answers
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apt-get loop for ppa's

I recently wanted to install e17 on ubuntu 12.04. I first tried to use the ppa ~ hannes-janetzek / enlightenment-svn and it did not work for me, because it did not all packages (econnman), I kept ...
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1answer
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Getting error when running apt-get -f install [duplicate]

Use of uninitialized value in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3. Use of uninitialized value in -e at ...
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apt-get error (blocking updates) “ubuntu/dist/trusty/main/binary-*” how to correct? [duplicate]

There's a problem with apt-get it appears two sources are bouncing back 404 errors. However this is curretly blocking me from updating or installing new packages. Can someone advise on what these ...
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1answer
25 views

Ubuntu on armhf: “using PPAs with apt-get source -b”?

In brief, the problem I seem to be having is that apt-get "ignores" whatever PPA I add. I assume that this is because the respective PPA's limit their debs to i386 and AMD64 builds. (I'm using armhf.) ...
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1answer
38 views

i m getting problem in installing traceroute utility

I m getting this atul@ubuntu:~$ sudo apt-get install traceroute [sudo] password for atul: Reading package lists... Done Building dependency tree Reading state information... Done Package ...
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1answer
42 views

Can't update ubuntu 12.10 in Lenovo G580 [closed]

I'm above mentioned laptop running ubuntu 12.10.When i issue sudo apt-get update it shows Ign cdrom://Ubuntu 12.04.2 LTS _Precise Pangolin_ - Release amd64 (20130213) precise Release.gpg Ign ...