I was trying to install KDE plasma 5 in ubuntu 14.04 64 bit when i am trying to add  sudo apt-add-repository ppa:neon/kf5   i am getting this error  Cannot add PPA: 'ppa:neon/kf5'. Please check that the PPA name or format is correct.   I was following the tutorial
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I am attempting to install kubuntu-plasma5-desktop on Kubuntu 14.04 amd64, following    sudo apt-add-repository ppa:neon/kf5 sudo apt update sudo apt install project-neon5-session project-neon5-utils project-neon5-konsole  sudo apt-add-repository ppa:kubuntu-ppa/next sudo apt-add-repository ppa:ci-train-ppa-service/landing-005 sudo apt update sudo apt install kubuntu-plasma5-desktop   Unable to locate package kubuntu-plasma5-desktop  How can I fix this error?
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When I run this command :  apt install libkf5*   I get the following error :  Unable to locate package libkf5*    I'm sure that the packages whose names start with libkf5 exist (tab-completion says so) . So the problem is not about the absence of those packages.(Note the asterisk at the end of that error message , the wildcard's not working at all) I use apt v.1.9. Thanks in advance.
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my system:    intel cpu gtx 1050 ti ubuntu suite 16.04 kdenlive 4:15.12.3-0ubuntu1  (got this with dpkg -l, think it is the version)   The GPU option in Kdenlive is greyed out, I read I have to have the movit-library (libmovit4) installed in order to enable the GPU option. Strangely, the movit library is already installed.
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PPA seems to be constantly offline. Whenever I use sudo apt-get update, this error is shown:  W: Failed to fetch http://ppa.launchpad.net/ 404  Not Found   How do I fix these errors?
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When I add a repository by running  sudo add-apt-repository ppa:ubuntu-x-swat/x-updates   It outputs this dialog:  Updated versions of X.org drivers, libraries, etc. for Ubuntu.  This PPA is for stable upstream releases of X.org components.  If you're looking for something even more bleeding-edge, please see the xorg-edgers PPA.  While Ubuntu does not "officially/formally" support these packages, if you discover problems when installing these debs please feel free to report bugs to launchpad.  However, please make sure to clearly state that you are running packages from this PPA so we know the fixes need to come here.  If you are upgrading from one release to another with this PPA activated, please install the ppa-purge package and use it to downgrade everything in here beforehand. sudo ppa-purge ppa:ubuntu-x-swat/x-updates will do it.  [Directions for packaging drivers can be seen at https://wiki.ubuntu.com/X/DriverBuilding]  More info: https://launchpad.net/~ubuntu-x-swat/+archive/x-updates Press [ENTER] to continue or ctrl-c to cancel adding it   I want to skip the confirmation step  Press [ENTER] to continue or ctrl-c to cancel adding it   How can I automatically confirm the addition of a PPA?
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The error I am having when trying to update my package list.  W: GPG error: http://download.opensuse.org ./ Release: The following signatures were invalid: KEYEXPIRED 1436387333  W: Failed to fetch http://ppa.launchpad.net/samrog131/ppa/ubuntu/dists/trusty/main/binary-amd64/Packages  404  Not Found  E: Some index files failed to download. They have been ignored, or old ones used instead.
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I'm trying to update and upgrade my kubuntu 15.04. After trying to install all upgrades, I got the following error message:  The following extra packages will be installed: kde-config-telepathy-accounts The following packages will be upgraded: kde-config-telepathy-accounts 1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/122 kB of archives. After this operation, 1.948 kB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 626049 files and directories currently installed.) Preparing to unpack .../kde-config-telepathy-accounts_15.04.0-0ubuntu1~ubuntu15.04~ppa1_amd64.deb ... Unpacking kde-config-telepathy-accounts (15.04.0-0ubuntu1~ubuntu15.04~ppa1) over (0.9.0-0ubuntu1) ... dpkg: error processing archive /var/cache/apt/archives/kde-config-telepathy-accounts_15.04.0-0ubuntu1~ubuntu15.04~ppa1_amd64.deb (--unpack): trying to overwrite '/usr/share/accounts/services/google-im.service', which is also in package account-plugin-google 0.12+15.04.20150415.1-0ubuntu2 dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) E: Sub-process /usr/bin/dpkg returned an error code (1)   How can I fix this problem?
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I tried to install qt5-default but the package was not found. Of course, I read  and added universe to the apt and done a apt update. I think qt5-default is not in 21.04 yet as it says  so how can I install, i need it.
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I see a lot of interesting programs out there that can only be obtained by adding a "PPA" to the system but, if I'm understanding correctly, we should stay within the official "repositories" for adding software to our system.   Is there any way for a novice to know if a "PPA" is safe or if it should be avoided? What tips should the user know about when dealing with a PPA?.
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It didn't fixed the error. So, how do I fix my GUI update?  For every software I have to install it from command line because I got same error when install software from Ubuntu Software Center.
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The server version of Ubuntu does not have the  command. How can I add a  (PPA) to the server without this command?
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I get the following error when i do sudo apt-get update  W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6AF0E940624A220   I tried following ways after reading various questions here and also by googling.  I tried  sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 6AF0E1940624A220   It did not help. I also tried  sudo gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys   thinking port 11371(default) may be blocked due to firewall.  I also tried to reset everything as follows  sudo rm /var/lib/apt/lists/* -vf sudo apt-get update &amp;&amp; sudo apt-get upgrade   still i get the same error or get update. Any other possible solution I can try?
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I recently installed Ubuntu 15.10 on my old computer.  I'm now trying to create a windows usb stick to install on a new computer I'm building.  When I add the repository      sudo add-apt-repository ppa:colingille/freshlight   and I try to update, I get the following errors:      W: Failed to fetch http://ppa.launchpad.net/colingille/freshlight/ubuntu/dists/wily/main/binary-amd64/Packages  404  Not Found                               W: Failed to fetch http://ppa.launchpad.net/colingille/freshlight/ubuntu/dists/wily/main/binary-i386/Packages  404  Not Found      E: Some index files failed to download. They have been ignored, or old ones used instead.   Then when I try:     sudo apt-get install winusb   I get:     E: Unable to locate package winusb   Can anyone help me find a solution?
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I recently installed Ubuntu 18.04 and I'm not keen on the desktop environment. I want the desktop env. I used to have in Ubuntu 14.04. How can I get it?  I've attempted to use , but when I try to install the Unity's 7.2.5 version using the command:  apt install unity=7.2.5   it gives me   E: Version '7.2.5' for 'unity' was not found   For sure I need to add a PPA for this, but which one!?
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Alright, so due to problems connecting to a wifi network on the ubuntu server distribution, i want to install the neccesary packages for a lamp, mail and ssh server on an ubuntu desktop 14.04 lte distribution(i am able to connect to the internet with the desktop version).  what should i install from the command line?  Thanks in advance!
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Possible Duplicate:             TL;DR: sudo apt-get install ... saying "Unable to correct problems, you have held broken packages."   The problem  I was trying to get the WebApps feature for PP and QQ following .  I ran the sudo add-apt-repository ppa:webapps/preview command to add the repository, but i got a connection error. Since I know my current ISP gives a shaky connection, I tried again and sure enough, it worked.  Then I ran sudo apt-get install unity-webapps-preview, but I realized we had to update apt-get first, so I hit Ctrl + C to stop it. Then I ran sudo apt-get update which worked w/o a fuss, but when I ran sudo apt-get install unity-webapps-preview again later, it showed an error message. Here's the dump:  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:  unity-webapps-preview : Depends: xul-ext-unity but it is not going to be installed                          Depends: xul-ext-websites-integration but it is not going to be installed                          Depends: xul-ext-webaccounts but it is not going to be installed E: Unable to correct problems, you have held broken packages.   I think this might be because of me interrupting the earlier command. It hadn't got a chance to output anything, though — I stopped it pretty fast.  What I tried  Commands  I tried these:-   sudo apt-get install --fix-broken sudo apt-get autoclean sudo apt-get autoremove sudo apt-get -f install   But even after running sudo apt-get upgrade after every try, none of them worked.  Purging  I tried purging the repository, but that didn't work either. First, I got the package using sudoapt-get install ppa-purgeand then tried to purge the WebApps repo usingsudo ppa-purge ppa:webapps/preview`.  Manually installing dependencies  If you look at the error dump carefully, it says:     Depends: xul-ext-unity but it is not going to be installed   Depends: xul-ext-websites-integration but it is not going to be installed   Depends: xul-ext-webaccounts but it is not going to be installed   So I tried installing them manually. I ran sudo apt-get install xul-ext-unity, but got this:     Depends: xul-ext-websites-integration but it is not going to be installed   Breaks: firefox (>= 15.+) but 16.0~b6+build1-0ubuntu0.12.04.1~mfn4 is to be installed   I have no idea what the second part means, but I tried resolving the first. Running sudo apt-get install xul-ext-websites-integration gave:     xul-ext-websites-integration : Breaks: firefox (>= 15.+) but 16.0~b6+build1-0ubuntu0.12.04.1~mfn4 is to be installed   As a last resort, I tried sudo apt-get install xul-ext-webaccounts, but that gave the sane message too:     Breaks: firefox (>= 14.+) but 16.0~b6+build1-0ubuntu0.12.04.1~mfn4 is to be installed   What does Breaks: firefox (&gt;= 14.+) but 16.0~b6+build1-0ubuntu0.12.04.1~mfn4 is to be installed mean?  Research  I tried searching , looking at a couple of , looking at  and searching on AU, but to no avail. Help would be appreciated.
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How to install  on Ubuntu?   Is there a way to use apt-get install?   I only have command line access to my server. How do I install Anaconda on Ubuntu 14.04 from the command line?