gistfile1.txt

donofrio@WSAL0013:/mnt/c/Users/donofrio/Downloads/facebook-data$ sudo gem install nokogiri 
Fetching: mini_portile2-2.3.0.gem (100%)
Successfully installed mini_portile2-2.3.0
Fetching: nokogiri-1.8.2.gem (100%)
Building native extensions. This could take a while...
ERROR:  Error installing nokogiri:
	ERROR: Failed to build gem native extension.

    current directory: /var/lib/gems/2.5.0/gems/nokogiri-1.8.2/ext/nokogiri
/usr/bin/ruby2.5 -r ./siteconf20180329-16536-1tbe3hs.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/2.5.0/gems/nokogiri-1.8.2 for inspection.
Results logged to /var/lib/gems/2.5.0/extensions/x86_64-linux/2.5.0/nokogiri-1.8.2/gem_make.out
donofrio@WSAL0013:/mnt/c/Users/donofrio/Downloads/facebook-data$ ruby facebook-contact-info-summary.rb 
Traceback (most recent call last):
	2: from facebook-contact-info-summary.rb:42:in `<main>'
	1: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- nokogiri (LoadError)