Ruby - command exit error

Question

I'm completely new to programming and im having trouble figuring out why Im getting an error when typing the following:

puts "What is your favorite number?"
number = gets.chomp
number = number.to_i + 1
puts "I suggest " + number.to_s + " as a bigger and better number"

When I run in terminal the following error appears:

Last login: Fri Jul 10 07:56:21 on ttys000
mba-3093:~ knalavadi$ 
/var/folders/cv/tm657j1d0kg68fbb1rqtrlgjlg_hrm/T/Cleanup\ At\ Startup/ruby2-458233138.705.rb.command ; exit;

What is your favorite number?

Answer 1

The code works. How are you running the script? Put it in a file like number.rb and then run it by typing ruby number.rb