Why do I get "package not found" when trying to install jabref with apt-get?

Question

I can find a particular application 'JabRef' at the ubuntu software centre. But whenever I type sudo apt-get install jabref in terminal, it says package not found. What's going wrong here? Do I have to capitalise the exact letters as in the application name or do I need some additional steps to make sure the terminal looks at the correct repository for the particular installer?

Answer 1

Make sure that Universe repository is available in software sources as here . Tick mark it if Unticked initially.

Then do sudo apt-get update & sudo apt-get upgrade.

Check if jabref is present by apt-cache show jabref.

And finally sudo apt-get install jabref . No capitalization of any word is required however.

Answer 2

Execute sudo apt-get update first and then try installing jabref again.