build does not work in sublime text. How to fix?

Question

ubuntu

I installed Sublime Text 3 on Ubuntu. I launched it and decided to test it. Knocked out:

/bin/bash: ruby: command not found
[Finished in 0.0s with exit code 127]
[shell_cmd: ruby "/home/name/Desktop/ruby.rb"]
[dir: /home/name/Desktop]
[path: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games]

Looked for solutions. Launched through the console with the command: "subl."
Works. Then I launched the shortcut again - build does not work. What could be the problem?