Ubuntu
gnome-shell package

  1. Bug #1734095
  2. Comment #7

Comment 7 for bug 1734095

Revision history for this message
Colin Law (colin-law) wrote : Re: After upgrade to ubuntu 17.10 Software & Updates not showing authorization popup [gnome-shell[N]: pushModal: invocation of begin_modal failed]

@Darius, the point is the bug is not about gnome-software it is about software-properties-gtk. To run it from a terminal use the command
/usr/bin/python3 /usr/bin/software-properties-gtk