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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Dependency error installing Ncurses

I am on Kubuntu 16.04 and I have been trying to install ncurses but I keep on getting dependency errors: libncurses5-dev : Depends: libtinfo5 (= 6.0+20160213-1ubuntu1) but 6.0+20160319-1 is to be ...
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10 views

How to install softwares kubuntu 15.10?

whenever I'm using sudo apt-get install software-center or anything else like gedit I'm getting these only Reading package lists... Done Building dependency tree Reading state information... ...
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18 views

dpkg - how to install pre-dependency? [closed]

i need to install apt package on a machine where the only package system is dpkg. To do so, i have to install multiarch-support, it depends on libc6 which depends on libgcc1. But libgcc1 pre-depends ...
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1answer
820 views

appstreamcli: Detected colliding ids: XY.desktop was already added with the same priority

I have recently found that when running sudo apt-get update on Ubuntu GNOME 16.04 (though it is the same on all flavours) that this is the output: Get:1 http://gb.archive.ubuntu.com/ubuntu xenial ...
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0answers
19 views

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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1answer
24 views

apt-get update not working via college proxy [duplicate]

I am getting endless ign and err while updating the apt-get, i even used proxychains by the command : proxychains apt-get update But still the ign and err are same. I want to install tor browser but ...
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1answer
18 views

How to install additional packages that had ignored by --no-install-recommends flag?

--install-suggests is not a solution - it offers install suggested packages for all installed in system packages - I want to install recommends only for one particular package. P.S. Is there ...
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15 views

Change back default python in ubuntu 12.04

My default python version on my Ubuntu 12.04 is python 3. I remember, a long time ago, I asked someone to change the default python version to 3. I didn't really do a lot, so I had no problems. But ...
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18 views

unable to locate package phpmyadmin [duplicate]

Unable to locate package while installing phpmyadmin. $ sudo apt-get install phpmyadmin Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to ...
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28 views

How to fix software updater packages broken?

I have this trouble in Ubuntu 16.04 LTS: I don't know how to fix this. Why this problem happened? Please everybody help.
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1answer
368 views

Unable to 'apt-get dist-upgrade' on a persistent Ubuntu 16.04 USB

I have created a USB stick with a persistent Ubuntu 16.04 (release version). I tried a couple of ways, using Startup Disk Creator and MultiSystem, but I get the same end result. When I boot into the ...
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14 views

Installing libgtk-x11-2.0.so.0 in Ubuntu 15.04

I'm trying to install opencv on my Ubuntu 15.04 server. I'm using the conda package manager. conda install -c https://conda.binstar.org/menpo opencv3 When I try importing cv2, the Python package, I ...
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746 views

apt-get update fails on Ubuntu 16.04 when I enable the google music manager ppa

Seems as if the pre-16.04 security key security is no longer sufficient. I'm not sure what to do to fix this. Or is this something google needs to fix on their end? moorepants@parvati:~$ sudo ...
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2answers
133 views

How to automatically update /etc/apt/sources.list with source URIs on Ubuntu 16.04?

The following command worked fine on Ubuntu 15.10: sudo apt-get build-dep emacs24 However, on Ubuntu 16.04 I get the following error when running it: Reading package lists... Done E: You must put ...
4
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1answer
43 views

Could I abort the install process on Ubuntu Software?

I rarely install applications from Ubuntu Software. I usually install applications from terminal or GDebi. In previous versions of Ubuntu Software Center, I can abort the installation process. But ...
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28 views

Error while running apt-get

I ran apt-get command on terminal and I came across this error message: E:Encountered a section with no Package: header E:Problem with ...
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2answers
106 views

CodeBlocks in a Xenial

I'm newbie in linux and I can't install the codeblocks in the xenial. These errors happen: The following packages have unmet dependencies: codeblocks: Depends: libcodeblocks0 (= ...
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0answers
129 views

How to install Deepin Desktop Environment in Ubuntu 16.04 LTS?

I want to install Deepin Desktop Environment on my Ubuntu Xenial. Can anyone provide a step by step walkthrough on what repositories to add and how to install? I couldn't find any comprehensive ...
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23 views

Has the update process changed in 16.04?

Update: This comment by Colin Watson addressed my question/concern. Thanks, Colin! apt has got rather better at producing less junk in its output than it used to, and various server-side changes ...
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15 views

following packages have unmet dependencies

I want to update codelite on my computer, but when I download the new version and uninstall my previous one. However, when I add the deb file, the terminal said: The following packages have unmet ...
3
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1answer
447 views

How can I automatically fix W: Target Packages … is configured multiple times?

how to fix error W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:2 and /etc/apt/sources.list:5 is different because I want an automated way. ...
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0answers
27 views

14.04 hangs, suspicious broken dependency with libefl

Ubuntu's got a broken package dependency and I tried to fix it, but now it won't reboot. I have to admit I haven't been paying as much attention to my Ubuntu server as I should recently even though ...
26
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1answer
5k views

How to fix apt: Signature by key uses weak digest algorithm (SHA1) after installing Chrome?

I have just updated to Ubuntu 16.04 LTS I started setting up by installing Google-Chrome and then went to run a sudo apt-get update again before I started installing other software, and I get the ...
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1answer
184 views

Just installed Ubuntu 16.04 but no software center

Installed Ubuntu 16.04 here are my specs: OS: Ubuntu 16.04 LTS x86_64 Kernel: 4.4.0-21-generic Uptime: up 17 hours, 39 minutes Packages: 3268 Shell: /usr/bin/fish Resolution: 1366x768 Desktop ...
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1answer
32 views

Computer freeze when apt-get

I'm running Ubuntu 14.04 LTS and having a big problem for the last days. Each time I'm launching a package related command (apt-get install ..., apt-get upgrade, some dpkg commands etc..), it does ...
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1answer
354 views

How to fix error W: Target Packages (main/binary-amd64/Packages) is configured multiple times in my sources.list file?

I have Kubntu 16.04 Xenial Xerus and when I want to run commmand sudo apt-get update or sudo apt-get autoclean or sudo apt-get install (package name) or sudo apt-get install -f says me this : Citire ...
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0answers
27 views

Error while updating

I am a new Ubuntu user running 14.04 LTS and I have a question that has been bugging me for 2 days. This is the error I get when I use $ sudo apt-get update: W:Failed to fetch cdrom://Ubuntu 14.04.4 ...
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178 views

Empty files can't be valid archives when running sudo apt update

I have just make a fresh install of ubuntu 16.04. I've never seen this error on ubuntu 15.10. When I try to run sudo apt update: Hit:1 http://fr.archive.ubuntu.com/ubuntu xenial InRelease Hit:3 ...
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2answers
196 views

Cannot install build-essential on ubuntu 16.04 [on hold]

I am trying to install build-essential package on Ubuntu 16.04 (Xenial Xerus) but there is a dependency issue. root@server:~# apt-get install build-essential Reading package lists... Done Building ...
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1answer
84 views

sudo apt-get update failes due to Hash Sum mismatch

When I run sudo apt-get update I get four Hash Sum mismatch errors: W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/trusty-updates/main/binary-amd64/Packages Hash Sum mismatch W: ...
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1answer
34 views

'dpkg-source' unpack error on Ubuntu GNOME 16.04

After installing Ubuntu GNOME 16.04 with GNOME 3.20 in a VM I have found that if I run an apt-get source command such as: apt-get source apt I get the following errors after it has downloaded the ...
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1answer
20 views

Mysql-common cannot be uninstalled

I'm trying to completely uninstall mysql to reinstall it later, after uninstalling all mysql-related packages, mysql-common seems to remain in a broken state. $ sudo dpkg -l | grep mysql pc ...
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1answer
92 views

Cannot install Nodejs 4 in Ubuntu 14.04

I've run the following commands in my Vagrant machine. As you can see, I have Node 0.10.40 and I cannot make it update it to 4.4.3 which is the current LTS version. ...
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1answer
276 views

How can I force 16.04 to add a repository even if it isn't considered secure enough?

I really need to install Nvidia Cuda but I'm getting the error E: Failed to fetch file:/var/cuda-repo-7-5-local/Release No Hash entry in Release file ...
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0answers
83 views

Wily to Xenial - repository change question

I have Ubuntu Wily 64 bit installed on a system. I first ran: sudo apt-get update sudo apt-get upgrade and completed installing all the upgrades, available for Wily. Suppose that I manually ...
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1answer
122 views

I'm getting this error when try to update to php5

When I try to upgrade php from 5.3 to 5.6, this wild error appears Extracting templates from packages: 100% (Reading database ... 98172 files and directories currently installed.) Unpacking ...
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0answers
34 views

Is snap/click packaging system be available for other distros? [on hold]

I am thinking on install Debian and learn more about the system, but I would like to be able to still have some of the snap apps, that way I could be using Debian stable, and still have updated ...
2
votes
1answer
20 views

Is choosing 'Security Updates Only' on installation of Ubuntu Server enough?

I want necessary security updates on my Ubuntu servers, without my interference. In general, do I need to do anything else after selecting the 'Security updates only' option in the automatic updates ...
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0answers
33 views

Problem installing skype in Ubuntu 15.10

I am facing problem installing skype. First, I have downloaded latest skype version from the web and try with: sudo dpkg -i skype-ubuntu-precise_4.3.0.37-1_i386.deb And I got this message: ...
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0answers
20 views

How do you find the package that contains a particular symbol?

I recently tried to build a project downloaded from Github, tcsh. https://github.com/tcsh-org/tcsh It turns out I was missing the package was libtinfo-dev (and its dependencies). The configure ...
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0answers
36 views

unable to add-apt-repository [closed]

i'm trying to download Atom using sudo add-apt-repository ppa:webupd8team/atom but results me that: sudo: add-apt-repository: command not found so I've searched all the night, and only found those ...
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0answers
15 views

No desktop and Loading Icons. . . Issue

I've recently installed Ubuntu 15.10 onto a virtual machine, however after logging in there is no icons or anything on the desktop, just the cursor and the background. I have looked online however am ...
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0answers
43 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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0answers
34 views

Package dependency is not going to be installed

I try to install ROS, but it does not work properly, so they write I should install libgl1-mesa-dev-lts-utopic first. This produces this error, for which I can't find the solution. Why doesn't apt-get ...
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0answers
22 views

Why am I unable to download changelogs for certain new packages?

I have recently found (this started a few days ago) that I am unable to download the changelogs for reasonably new software, though the changelogs do seem to come available later on for some of the ...
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1answer
52 views

Problem with IPv6 sudo apt-get update/upgrade

I am using Ubuntu 16.04 Beta 2 at the moment and every time I try to update at home via sudo apt-get update or upgrade trough sudo apt-get upgrade I wont get any feedback. Even installing of anything ...
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2answers
357 views

Repository adding > problem

After running those two commands: sudo add-apt-repository ppa:tualatrix/next sudo apt-get update I am getting this output: Reading package lists... Done W: The repository ...
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1answer
61 views

PPA 404 error upon apt-get update? (related to php7) [duplicate]

I get a 404 error upon php7 update from url http://ppa.launchpad.net/ondrej/php-7.0/ubuntu/dists/wily/main/binary-amd64/Packages Err ppa.launchpad.net wily/main amd64 Packages 404 Not Found Err ...
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0answers
51 views

Error when trying to run sudo apt-get update [closed]

Below is the error that I receive, root@openvpnas2:~# sudo apt-get update Get:1 http://us.archive.ubuntu.com trusty InRelease [10.7 kB] 100% [1 InRelease gpgv 10.7 kB] [Waiting for headers] [Waiting ...
1
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1answer
28 views

Installing Qt3 on Ubuntu 15.10

I wanted to try installing THELI (https://www.astro.uni-bonn.de/theli/) on my Ubuntu machine. In the installation notes it says that it needs qt3, and not qt4 or 5, for the GUI to work properly. I ...