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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Local apt repository skipping packages

I've created an apt repository for a few local files, generally obscure drivers or locally-created files for my own use. The repository is limited to my own internal network, so it can have non-free ...
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Apt-get install -f and apt-get autoremove error

I've tried to install new software on Ubuntu and it told me to use that command apt-get install -f, but I get back an error message and I have no idea how to fix it. After that, I tried to use apt-...
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Can't install libSDL2-2.0-0:i386

I'm trying to run Star Conflict. It had troubles with libcurl, but I fixed that. Now, it wants the 32-bit version of libSDL2-2.0-0. No problem right? Well, this is what it says: dirk@SUBNETDEFENSE:~$ ...
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Trying to install gdl-coyote on Ubuntu 14.04

I am trying to install gdl-coyote on Ubuntu 14.04. I have installe gdl using the command apt-get install gnudatalanguages. Which installs version 9.4 I have downloaded the gdl-coyote_2016.01.14-1_all....
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510 views

Update issues 16.04 - Failed to download repository information

I keep getting the old message that I experienced from previous upgrades of yonder. Changing the server and refreshing doesn't seem to work anymore. W:There is no public key available for the ...
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kubuntu-desktop dependencies problem, now forbidden icon

A week ago, one of my friends said that the kubuntu-desktop is cool. So I installed it. But now there are dependencies problem with kde-telepathy-minimal, and the forbidden icon turned up and said ...
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Upgrade got stuck. How can I fix this?

Since other posts suggest this, I should mention that I cannot run dpkg --configure -a, even after killing the process. In any case, the Distribution Upgrade window blacked out, and when I try to ...
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139 views

Can't Install Cuda on Ubuntu 14.04 Because of Package Conflicts

I believe I have the same problem as this thread, but I have tried the steps listed, and I am not able to solve the problem. I am running Ubuntu 14.04 64bit on a custom desktop with 4GB DDR3 ram, ...
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Why is dpkg -i faster than the ubuntu software center?

Why is using sudo dpkg -i package.deb to install deb packages faster than double clicking on the deb file and installing it through the software center? I have seen a very significant time gap ...
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apt-get -f install is trying to remove sudo

I was trying to get a program to work, and installed a different version of wine that overwrote the version of wine I already had. (That version ended up not working) So I tried installing the default ...
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How to provide a ppa for a project on Github in README?

I have uploaded the source on Github but I want to provide the PPA in the README file so that users can directly do sudo add-apt-repository -y ppa:foo/project Then update the cache using: sudo ...
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139 views

can't add key - keyserver timed out

I'm trying to install mongodb on ubuntu 15.10. While following this - Install Mongo 3.2 on Ubuntu 15.10 - i got the following error message: W: GPG error: http://repo.mongodb.org trusty/mongodb-org/...
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129 views

Unable to install anything using apt-get

I looked through some threads and couldn't find a solution, apologies if this is a duplicate. After messing up an installation of some package (see below), attempting to install anything yields: $ ...
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47 views

var lock issue right after installing JDK and soapUI on my machine

I have been dealing with an issue all day here. I cannot seem to have apt-get work for anything whatsoever. I have been through several parameters here including trying these following solutions: ...
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cachegrind.out files still being stored at /tmp even after being purged,autoremoved

I have uninstalled kcachegrind from my Ubuntu 14.04.I notice some files like cachegrind.out.1606,cachegrind.out.2301 etc. being stored at /tmp directory.Each of this files have size of more than 10 MB....
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Uninstall packages with stow

I recently compiled (in Ubuntu 14.04) the latest version of emacs 24.5 using the following script from here. #!/bin/bash # Build latest version of Emacs, version management with stow # OS: Ubuntu ...
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42 views

apt-get install not install dependencies

I faced a really weird issue recently in Ubuntu 14.04 LTS Here are the steps: I have a deb package called test.deb which has dependency on xorg-dev Then I tried to install this deb package by sudo ...
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91 views

ROS installation not working… or anything else

I am relatively new to Ubuntu and am trying to install ROS Jade for work on a project. I am running Ubuntu 14.04 LTS and have been following the steps listed at the official website. My repositories ...
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146 views

KDE Plasma can't install. Help me

When try to install KDE Plasma (Kubuntu Desktop) on Ubuntu 15.10 using sudo apt-get install kubuntu-desktop Then this error comming, Reading package lists... Done Building dependency tree ...
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37 views

No package information is being reported to landscape

Hi I have recently added some new machines to our infrastructure. I was able to register the computers with the UI, I can see CPU information, process etc. However I still see: 2 computers have ...
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120 views

Error while upgrade in Ubuntu 15.10

I am getting this result by running sudo apt-get upgrade: Do you want to continue? [Y/n] y Extracting templates from packages: 100% Preconfiguring packages ... Setting up udev (225-1ubuntu9.1) ... ...
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20 views

Testing an APT repository

I am trying to setup a distribution mechanism for Raspbian (Raspberry Pi) on a Ubuntu server. I have read most of the posts here and articles I could find about setting up an APT repo. I don't know if ...
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339 views

How to install node 0.10.40 on Ubuntu 14.04

I'm trying to follow this instruction (from How to Install the Latest Versions of NodeJS and NPM for Ubuntu 14.04 LTS): apt-key adv --keyserver keyserver.ubuntu.com --recv 68576280 apt-add-repository ...
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44 views

Troubleshooting apt-get segmentation faulr

I have Ubuntu 14.04 running on a Raspberry Pi. Everything has been going great but recently deluge has stopped working. Thought I would need to just run apt-get to refresh any updated packages but ...
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Unmet dependency issue after failed Skype install

I'm pretty new to linux/ubuntu so I have no idea what is going on. I tried searching some of the errors I'm having online, and I tend to see similar information that hasn't helped. I figure I should ...
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59 views

Wine on Ubuntu 15.10

I have updated my OS from 14.04 to 15.10 (Both AMD64). In the past, wine installs without any problem on 14.04 machines, but this time there are problems. I tried to install wine(Microsoft Windows ...
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298 views

Failed to install HipChat4 for ubuntu 12.04

I have followed the installation steps here : sudo sh -c 'echo "deb https://atlassian.artifactoryonline.com/atlassian/hipchat-apt-client $(lsb_release -c -s) main" > /etc/apt/sources.list.d/...
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52 views

manpages fails to update

I run apt-get update and all the other packages update fine, but manpages fails with this error The following packages will be upgraded: manpages 1 upgraded, 0 newly installed, 0 to remove and 0 ...
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250 views

Installing cuda-toolkit on ubuntu 15.10 hash sum mismatch

I am trying to install cuda-toolkit to my fresh ubuntu-15.10 . After reading the official instructions here http://developer.download.nvidia.com/compute/cuda/7.5/Prod/docs/sidebar/...
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45 views

apt-get reports “no installation candidate” randomly for no good reason

When I provision Ubuntu 14.04 boxes in Amazon AWS, I begin with an official Canonical AMI (specifically ami-f0c52390), boot the instance, and run a provisioning script. One of the first things the ...
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Weird Wine Packages w/ Weird Names - Can't Remove

So I tried to install some stupid game through Wine but the game is not originally in English and some weird things happened. Now I am stuck with these "apps" that go nowhere (it was unable to open - ...
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Sometimes `90-updates-available` doesn't show the number of updates available upon login?

I just figured out that the program 90-updates-available (as in /etc/update-motd.d/90-updates-available) sometimes behaves strangely, on ALL my Ubuntu 14.04 LTS machines (not sure for other releases). ...
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“/usr/lib/apt/methods/https could not be found” when trying to install apt-transport-https

When I try to run any apt-get command, I get the error:: E: The method driver /usr/lib/apt/methods/https could not be found. N: Is the package apt-transport-https installed? My first instinct was ...
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dpkg dependency problems due to different installed versions

Can someone help me to solve this problem? Below is the output when performing sudo dpkg --configure -a Output: sudo dpkg --configure -a dpkg: dependency problems prevent configuration of libapt-pkg4....
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apt-get + dpkg error after compiling and installing minidlna from source

I am running 14.04.1. I followed this guide to compile and install miniDLNA from source a while back. Ever since then, when I run sudo apt-get update && sudo apt-get upgrade -y, I get the ...
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49 views

E:The package picasa:i386 needs to be reinstalled, but I can't find an archive for it

Tired of getting this error again and again and it's blocking ubuntu software center from getting started it's just crashing when I try to open it. And getting this error at the time of installing and ...
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151 views

“apt-get update” no longer working

I can no longer update any packages in Ubuntu. $ sudo apt-get update Ign http://debian.sur5r.net trusty InRelease Ign http://security.ubuntu.com trusty-security ...
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60 views

Open broadcaster not installing

I'm trying to install Open Broadcaster: https://obsproject.com/download#linux but I'm getting these errors: The following packages have unmet dependencies: obs-studio : Depends: libavcodec-ffmpeg56 ...
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43 views

Trying to install mtrack, but get unmet dependencies

I recently installed Ubuntu 14.04.4 on my Macbook Air (late 2015). I want to fix the horrendous touchpad configuration that comes by default. So I searched and found that mtrack does that. So I tried ...
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Installing regionally restricted packages on 14.04

So I've been trying to install Skype* but it didn't work because it's restricted in my region by the original company, so I tried to install the OpenVPN package but it's also restricted in my region. ...
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57 views

apt-get equivalent to yum's --enablerepo

Is there an easy way to use a repository/PPA only when needed as we'd do in a RHEL based distro with yum's --enablerepo, --disablerepo flags . For example yum --enablerepo=epel install vlc yum --...
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207 views

JDK related error while installing git

I was installing git on my ubuntu 14.04 with terminal command apt-get install git, but following logs was output showing that there may be something wrong with JDK, but I do have install jdk on my ...
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70 views

unmet dependency and debconf: Problem setting up the database defined by stanza 3 of /etc/debconf.conf

everyone! I've been searching for a solution to this problem for weeks now, but nothing I've tried has worked. I am running a ARM version of Ubuntu 14.04 Server on an Odroid XU4. I'm not doing much ...
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107 views

“Package system is broken” and “unable to make backup link” combination in 14.04 LTS

I checked the similar Questions which indeed show resemblance to my problem but none of the previously presented solutions work for me. When I try to install anything with Software Center a ...
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16 views

How to build -dev package in launchpad?

I am developing small library and I've created appropriate debian package configuration. You can take a look at it at https://github.com/mspanc/vspec. When I run debuild locally it properly builds ...
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127 views

Unable to download packages from Country server

Following error is displayed as I tried to download guake from my terminal: Why is this forbidden error displayed? How can I be able to download it from my country server. It works fine When I try to ...
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91 views

How can I do a dist-upgrade without removing a huge amount of packages?

I was trying to a dist-upgarde on a machine I have (ubuntu 14.04.3 LTS) after an apt-get update but it wants to remove to many packages: The following packages will be REMOVED account-plugin-...
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48 views

Cant install wine (from PPA) it gives me the following error

The following packages have unmet dependencies: wine : Depends: wine1.6 or wine1.8 but it is not going to be installed E: Unable to correct problems, you have held broken packages.
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24 views

Unable to locate package pnp4nagios

I'm having problems trying to find the pnp4nagios package. I don't know what to do. apt-get install pnp4nagios -y
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Unmet dependencies, install -f looks scary

Ubuntu 12.04 LTS, 64-bit I tried to install Lazarus (1.4.4) by downloading the .deb files and using sudo dpkg -i. However I think it tried to install them in the wrong order and I now get "unmet ...