anchor.diff:  what you have added to <code>C:\tools\DevKit2\config.yml</code>:
   
   ~~~text
  -[INFO] Installing 'C:/tools/ruby22/lib/ruby/site_ruby/2.2.0/rubygems/default
  -[INFO] Installing 'C:/tools/ruby22/lib/ruby/site_ruby/devkit.rb'
  +[INFO] Updating existing gem override for 'C:/tools/ruby27'
  +[INFO] Installing 'C:/tools/ruby27/lib/ruby/site_ruby/devkit.rb'
   ~~~
   
   <div class="alert alert-danger" role="alert">Now re-open the console (Run as administrator)</div>
  
positive.code: 
  Execute the following command from the console:
  
  #### 3.2 Install RubyGems
  
  ~~~text
  @powershell (new-object System.Net.WebClient).DownloadFile('https://rubygems.org/downloads/rubygems-update-2.7.3.gem’,'C:\rubygems-update-2.7.3.gem') && gem install --local C:\rubygems-update-2.7.3.gem && update_rubygems --no-ri --no-rdoc && gem uninstall rubygems-update -x
  
negative.code: bottom:
  
  ~~~text
  - C:/tools/ruby27
  ~~~
  
  Save it, and then execute the following commands from the console:
  