Hi, I am trying to install uget and I get this error message "This requires installing packages from unathenticated sources" and there are only two options. Ok and Repair, and even if i click both their is nothing happening. It keeps on popping up. I am using Ubuntu 14.04 64bit  Please help.  Thank you.
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I tried installing VLC Player yesterday, and I got the Requires installation of untrusted packages error.  I searched for hours for a solution to this problem, and finally came upon a suggestion that said to change servers for downloading updates from.  I did this, and it gave me a 404 error when I clicked on "Check" in the Update Manager.  I tried switching my server back to the main one (and after that, several other ones), but I am now still getting a 404 error:   And the other error I get when downloading or updating:   Edit: Output of cat /etc/apt/sources.list:  deb-src http://us.archive.ubuntu.com/ubuntu/ precise main restricted #Added by software-properties  # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ precise main restricted multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ precise multiverse universe #Added by software-properties  ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates restricted main multiverse universe #Added by software-properties  ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ precise universe deb http://us.archive.ubuntu.com/ubuntu/ precise-updates universe  ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu  ## team, and may not be under a free licence. Please satisfy yourself as to  ## your rights to use the software. Also, please note that software in  ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team.  ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse #Added by software-properties  deb http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security restricted main multiverse universe #Added by software-properties deb http://us.archive.ubuntu.com/ubuntu/ precise-security universe  ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu precise partner deb-src http://archive.canonical.com/ubuntu precise partner  ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software.
29467
I'm new to Ubuntu, it looks like it is better than Windows. Last day I tried to install Kget (the download manager) but during the process my computer suddenly stopped working. So I had to switch it off. After I logged into Ubuntu again I can't install any program. The Ubuntu Software Center says:  Items cannot be installed or removed until package catalog is repaired. Do you want to repair it now?   After I clicked repair it says (after few seconds):  Package operation fails - The installation or removal of a software package failed   I've tried several times, but the same problem occurred. Can anyone tell me a solution for this problem?
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Does someone knows if it exists some ppa packages source for the newest Ubuntu version 19.10 i had problem with that when i upgraded from Ubuntu 19.04 to 19.10 i didn't work?
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Please let me know how to remove certain repositories in Ubuntu 11.04. I am getting the following errors while updating.  sudo apt-get update  Err http://ppa.launchpad.net natty/main Sources                                      404  Not Found Err http://ppa.launchpad.net natty/main i386 Packages                                404  Not Found ......  E: Some index files failed to download. They have been ignored, or old ones used instead.
22654
I am using Ubuntu 14.04. How to install and configure the latest version of  on Ubuntu.  I would like to know how to install it from PPA and from source.
101888
I'm trying to install scipy and numpy on Ubuntu 16.04 but I keep getting the following error. Can anyone tell me how to install the dependencies?  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:  python-numpy : Depends: python:any (&gt;= 2.7.5-5~)  E: Unable to correct problems, you have held broken packages.
116417
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 have seen someone typing  apt-get install !!   He did that a few times and every time, a different program was installed. It seems like it automatically figured out what is needed next.  However, when I tried it on my Ubuntu 14.04.1 LTS virtual machine, it just showed some usage instructions. Googling for apt-get install !! doesn't seem to work very well. Many search results do not contain the double exclamation mark.  What does apt-get install !! do and what could be missing on my machine that it did not work?
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I accidentally removed my /etc/apt/sources.list file. Is it hosted by Canonical somewhere so I can re-add it to the system? It's a bit of an emergency, so I hope someone can provide a quick answer.
877
When I check for updates, I get a "Failed To Download Repository Information" error.   This is what comes up under details:   W: Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_natty_main_source_Sources  Hash Sum mismatch,  E: Some index files failed to download. They have been ignored, or old ones used instead.
507
There are now errors when updating and I cannot install most software due to a corrupted  /etc/apt/sources.list   file. Is there a copy I can download to replace it?  The file would be for Ubuntu 12.04 (Final Beta) in the United States.
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I have no root access on this machine.  I would like to know if there is a way I can download Ubuntu packages and install them as non-root?  Probably in my ~/bin or ~/usr/share or something like that? Would that work?
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This is what happens:  sudo apt-get install vlc Reading package lists... Done Building dependency tree        Reading state information... Done E: Unable to locate package vlc   Please help. I would also like to know when this error occurs, I've seen it before too.
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I was trying to install all python packages using sudo apt install python3*, but it gave me this error: newtron@newtron:~$ sudo apt install python3* Reading package lists... Done Building dependency tree        Reading state information... Done E: Unable to locate package python3*
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I'm having issues with my ubuntu server version 12.04 installed on a HP550 laptop, when i try sudo apt-get install &lt;programname&gt;, e.g apache2 it will not work, saying E: Unable to locate package apache2.  I have tried to look/edit the sources. but they will not work either the gedit command is broken too, i am trying gedit /etc/apt/sources.list for those wondering, is this a case of the computer network not configured properly? it downloaded a language pack easily enough in the installation though. how do i fix this? a prompt reply would be appreciated.
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i am unable to perform the task though i followed the instruction. how to handel Unable to locate package ubuntu-restricted-extras?
2026
What does the above Error mean? What is an installation candidate?  I was trying to do  sudo apt-get install munin-memcached     and I get this message:  Reading package lists... Done Building dependency tree        Reading state information... Done Package munin-memcached is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package munin-memcached has no installation candidate   I googled for the problem and someone said to do a apt-get upgrade but it still did not solve my problem.