[SOLVED] Getting error, when i try "sudo apt-get update"

Issue

I installed again Ubuntu 18.04 now. After, i tried update and upgrade commands. Upgrade command executed very well. But, update command didn't executed and gave error output. You can view error under:

sudo apt-get update
Hit:1 http://security.ubuntu.com/ubuntu bionic-security InRelease
Err:2 http://tr.archive.ubuntu.com/ubuntu bionic InRelease         
  Could not resolve 'tr.archive.ubuntu.com'
Err:3 http://tr.archive.ubuntu.com/ubuntu bionic-updates InRelease
  Could not resolve 'tr.archive.ubuntu.com'
Err:4 http://tr.archive.ubuntu.com/ubuntu bionic-backports InRelease
  Could not resolve 'tr.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://tr.archive.ubuntu.com/ubuntu/dists/bionic/InRelease  Could not resolve 'tr.archive.ubuntu.com'
W: Failed to fetch http://tr.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease  Could not resolve 'tr.archive.ubuntu.com'
W: Failed to fetch http://tr.archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease  Could not resolve 'tr.archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

Solution

The server tr.archive.ubuntu.com isn't available right now, if you try to access it in your browser you get a 404 error. You can probably remove the tr. from in front of the the archive. in /etc/apt/sources.list, and your command will work.

You can do this with your text editor(nano just an example) like this

sudo nano /etc/apt/sources.list

Or you can use sed like this

sudo sed -i 's|http://tr.|http://|' /etc/apt/sources.list

Answered By - peppapig450

Answer Checked By - Mildred Charles (WPSolving Admin)