In my application whenever I try to start rails server following warning pop-up
/home/deepak/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.1/lib/active_support/xml_mini.rb:51: warning: constant ::Fixnum is deprecated /home/deepak/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.1/lib/active_support/xml_mini.rb:52: warning: constant ::Bignum is deprecated => Booting Puma => Rails 5.0.1 application starting in development on http://localhost:3000 => Run `rails server -h` for more startup options /home/deepak/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/activesupport-5.0.1/lib/active_support/core_ext/numeric/conversions.rb:138: warning: constant ::Fixnum is deprecated Puma starting in single mode... * Version 3.6.2 (ruby 2.4.0-p0), codename: Sleepy Sunday Serenity * Min threads: 5, max threads: 5 * Environment: development * Listening on tcp://localhost:3000 Use Ctrl-C to stop
Is it something from backend or I'm missing something to install on my machine which produce this.