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I just installed Ubuntu 18.04 LTS and get the below message when I open the Ubuntu software app. My computer is updated to the latest version. How to solve this.

enter image description here

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  • 5
    It's probably a temporary connectivity issue with extensions.gnome.org.
    – pomsky
    May 6 '18 at 16:21
  • I'm having this issue on Ubuntu 18.10. This is my personal laptop so no proxy involved.
    – yahavi
    Nov 2 '18 at 19:03
  • @yahavi Does the problem still there? You might like to ask a new question.
    – Kulfy
    Dec 10 '18 at 20:27
  • @Kulfy the answer of Bewarb solved my problem
    – yahavi
    Dec 11 '18 at 20:09
  • 1
    This only seems to happen on first start up when there is no internet connection.
    – holmberd
    Jul 12 '19 at 18:07
18

I was having same problem, no Internet issue was there. I did following -

Installed gnome-shell-extensions again

sudo add-apt-repository ppa:gnome-shell-extensions/ppa
sudo apt-get update
sudo apt-get install gnome-shell-extensions

I reinstalled gnome shell extension in firefox, and after some time, it started working. After that Ubuntu Software Manager showed no such error.

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    On 19.04 I get a "E: The repository 'ppa.launchpad.net/gnome-shell-extensions/ppa/ubuntu disco Release' does not have a Release file."
    – OZ1SEJ
    Apr 22 '19 at 18:47
  • 1
    You don't need the PPA on 19.04. Just install it directly. Sep 9 '19 at 4:43
  • Hello @BEWARB does your solution work for ubuntu 19.10 as well? Jul 1 '20 at 7:31
  • I get: Cannot add PPA: 'ppa:~gnome-shell-extensions/ubuntu/ppa'. ERROR: '~gnome-shell-extensions' user or team does not exist.
    – desmond13
    Sep 29 at 7:52

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