I am running Ubuntu 18.04.3 LTS and I was originally trying to run a installation for a program I've downloaded for Ubuntu.
When I run the program I am told that I need to have Linux Standard Base 3.1 installed and that I lack 3 modules in my system:
core-3.1-noarch
core-3.1-amd64
desktop-3.1-amd64
The Terminal tells me I can install the modules by running this comandline in my Terminal: apt-get install lsb-desktop-amd64
When I run the following command line in my terminal (sudo apt-get install lsb-desktop-amd64) I get the response that E: can not locate the package lsb-desktop-amd64.
What do I do? Please help if you have any clues!
N.B. I am new to Ubuntu so any detailed descriptions would be appreciated :-)
Best regards Mathias