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