Oxidized - Web install fails

Hi all

I am having an issue getting oxidized web installed on the following box:
Ubuntu 16.04.6 LTS

After a bit of jargon the the following is the output from the get install oxidized-web command:
make failed, exit code 2

Any ideas of whats wrong

Thx

Do you have g++ installed?

#https://github.com/ytti/oxidized/pull/1684

Yes - it is installed…

Probably another dependency needs installing, What Ruby version are you running?

Can you show full output of the error.