Hello Friends! Having trouble installing cherrytree app. *kaye@laptop:~$ sudo apt-get update* [sudo] password for kaye: Hit:1 http://security.debian.org/debian-security buster/updates InRelease
Hit:2 http://deb.debian.org/debian buster InRelease Get:3 http://deb.debian.org/debian buster-updates InRelease [51.9 kB] Hit:4 https://download.virtualbox.org/virtualbox/debian buster InRelease Fetched 51.9 kB in 6s (8,526 B/s) Reading package lists... Done *kaye@laptop:~$ sudo apt-get install cherrytree* Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package cherrytree thank you for your time! by the way thank you for the calculator suggestions in my previous thread.