Ubuntu
software-center package

Having difficulty downloading apps

Asked by Amber

I was looking for an application similar to Microsoft Paint, so I opened the Ubuntu Software Center and perused the available apps there. Unfortunately, when I clicked the "Install" button, an error message came up: "Failed to Download Package Files - Check Your Internet Connection." After clicking the Close button on the error message, another one came up that said "Requires Installation of Untrusted Packages". This happened with not one but several different applications that were listed for download. I was unable to find an app that would download at all.

The second message I understand getting - I realize that many of these applications are made by outside developers. It's the first one that bothers me. Check my internet connection? You mean the very same internet connection that I am using right now to write this error message? Obviously my connection is just fine, right?

Of course, I am new to Ubuntu, and am hardly well versed in these things. My husband was the one to install Ubuntu, and if I didn't know he was very busy with work and other things (and the fact that the last time I asked him for help on a computer problem, it was literally *weeks* before I got my computer back), I would ask him to take care of it. However, I figure that I should learn how to do these things myself at some point, eh?

Sooo....does anyone out there have any ideas as to why I am getting these error messages, and what steps I should take to fix the problem? Let me know if there is any other information that I should provide.

Thanks,

-Amber-

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Ubuntu software-center Edit question
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Revision history for this message
RajaSekharReddy Genupula (genupulas) said : 		#1

Hi
you said you got some message as check your internet connection ,if i remember correct , there will be "details " on that window it self . could you please post that data here .

Revision history for this message
marcobra (Marco Braida) (marcobra) said : 		#2

Please open a terminal and type:

sudo dpkg --configure -a
sudo apt-get install -f
sudo apt-get update
sudo apt-get dist-upgrade

give your user password when requested you will not see any screen chars back when you type the passwd, so type then press enter

if you are still in trouble please type:

sudo cp -arf /var/lib/dpkg /var/lib/dpkg.backup
sudo cp /var/lib/dpkg/status-old /var/lib/dpkg/status
sudo cp /var/lib/dpkg/available-old /var/lib/dpkg/available
sudo rm -rf /var/lib/dpkg/updates/*
sudo rm -rf /var/lib/apt/lists
sudo mkdir /var/lib/apt/lists
sudo mkdir /var/lib/apt/lists/partial
sudo apt-get clean
sudo apt-get update
sudo dpkg --clear-avail
sudo dpkg --configure -a
sudo apt-get install -f
sudo apt-get update
sudo apt-get dist-upgrade

Revision history for this message
Aaron (greerja-jg) said : 		#3

similar problem software center does not allow install

sudo dpkg --configure -a
and
sudo cp -arf /var/lib/dpkg /var/lib/dpkg.backup

both give a command not found in terminal
still have problem

when I put command sudo apt-get update i receive this error

W: GPG error: http://us.archive.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://extras.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 16126D3A3E5C1192 Ubuntu Extras Archive Automatic Signing Key <email address hidden>

W: GPG error: http://us.archive.ubuntu.com oneiric-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/oneiric/Release

W: Some index files failed to download. They have been ignored, or old ones used instead.

any suggestions?

Revision history for this message
Aaron (greerja-jg) said : 		#4

similar problem software center does not allow install

sudo dpkg --configure -a
and
sudo cp -arf /var/lib/dpkg /var/lib/dpkg.backup

both give a command not found in terminal
still have problem

when I put command sudo apt-get update i receive this error

W: GPG error: http://us.archive.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://extras.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 16126D3A3E5C1192 Ubuntu Extras Archive Automatic Signing Key <email address hidden>

W: GPG error: http://us.archive.ubuntu.com oneiric-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/oneiric/Release

W: Some index files failed to download. They have been ignored, or old ones used instead.

any suggestions?

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