Linux Mint Forums

Hi all,
just installed mint lxde 11 and got this problem while using Software Manager: when I click on install button, the download doesn't start. No error messages, no % green bar advancing, nothing. I just click and download doesn't start.
Yesterday I successfully installed some software via software-manager but today it seems not to work. I tried to install same software (openshot and libreoffice) from terminal but got these following errors:

Err http://archive.ubuntu.com/ubuntu/ natty-updates/main libqt4-svg i386 4:4.7.2-0ubuntu6.2
404 Not Found [IP: 91.189.92.181 80]
Err http://archive.ubuntu.com/ubuntu/ natty-updates/main libqt4-xml i386 4:4.7.2-0ubuntu6.2
404 Not Found [IP: 91.189.92.181 80]
Failed to fetch http://archive.ubuntu.com/ubuntu/pool/m ... 2_i386.deb 404 Not Found [IP: 91.189.92.181 80]
Failed to fetch http://archive.ubuntu.com/ubuntu/pool/m ... 2_i386.deb 404 Not Found [IP: 91.189.92.181 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

There is a thread about the SoftwareManager and a possible solution here: http://forums.linuxmint.com/viewtopic.p ... 76#p538288

Otherwise, just use "sudo apt-get install <package name>" to install things, because that actually works.

just typed sudo apt-get update on terminal
Then Software manager started to work again

skorpio wrote:just typed sudo apt-get update on terminal
Then Software manager started to work again

So, the command worked for me too, but, I still like to know what was going on. So, a quick search revealed from the Ubuntu forums:

Update the Package Index: The APT package index is essentially a database of available packages from the repositories defined in the /etc/apt/sources.list file. To update the local package index with the latest changes made in repositories, type the following:

sudo apt-get update

I know, the next question is why doesn't the Software Manager keep itself updated, especially since that's it's main purpose? I don't know. But, it worked!