If this is a fresh install of Ubuntu have you run 'apt update'? If it is not a fresh install what is the output of "apt-cache policy gnome- software"?
** Changed in: apport (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apport in Ubuntu. https://bugs.launchpad.net/bugs/1848063 Title: Ubuntu Software in not considered as official Ubuntu application by ubuntu-bug Status in apport package in Ubuntu: Incomplete Bug description: I'm trying to report a bug about "Ubutnu Software", using ubuntu-bug. When I click on it, the dialog "Problem in gnome-software" with content "The problem cannot be reported: This is not an official Ubuntu package. Please remove any third party package and try again." pops up. It's Ubuntu 18.04. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1848063/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp