Can't install gem 'jumpstart_auth' (Screenshot posted as well)

Screenschot of the error in my terminal

I am trying to install the gem however it wont let me due to some error , tried reading the gem documentation but couldn't figure it out myself.Thats when I needed the help of the seasoned ones.

Building native extensions. This could take a while... ERROR: Error installing jumpstart_auth: ERROR: Failed to build gem native extension.

current directory: /var/lib/gems/2.3.0/gems/http_parser.rb-0.6.0/ext/ruby_http_parser

/usr/bin/ruby2.3 -r ./siteconf20161223-26375-4etqmc.rb extconf.rb mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

extconf failed, exit code 1

Gem files will remain installed in /var/lib/gems/2.3.0/gems/http_parser.rb-0.6.0 for inspection. Results logged to /var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/http_parser.rb-0.6.0/gem_make.out