On Sat April 28 2018 07:22:20 dep wrote: > sudo apt-cache policy libqt5quickwidgets5 > > N: Unable to locate package libqt5quickwidgets5 If you can't find a provider for it in Ubuntu you could try switching to Devuan or Debian. libqt5quickwidgets5: Installed: (none) Candidate: 5.3.2-4 Version table: 5.7.1-2+b2 0 -500 http://ftp.us.debian.org/debian/ stretch/main amd64 Packages 5.3.2-4 0 2000 http://ftp.us.debian.org/debian/ jessie/main amd64 Packages --Mike