I don't have directories such as Ruby200 and Ruby 64. I'd installed them a few months ago. But I deleted them all. Now I'm trying to install ruby v2.2.6(86) and use devkit. But there are some errors like "Skipping invalid directory" What do I have to do?
C:\Ruby22\devkit>ruby dk.rb init
[INFO] found RubyInstaller v2.0.0 at C:/Ruby200
[INFO] found RubyInstaller v2.2.6 at C:/Ruby22
[INFO] found RubyInstaller v2.3.3 at C:/Ruby64
Initialization complete! Please review and modify the auto-generated
'config.yml' file to ensure it contains the root directories to all
of the installed Rubies you want enhanced by the DevKit.
C:\Ruby22\devkit>ruby dk.rb install -f
[ERROR] Skipping invalid directory 'C:/Ruby200'
[WARN] Updating (with backup) existing gem override for 'C:/Ruby22'
[WARN] Updating (with backup) DevKit helper library for 'C:/Ruby22'
[ERROR] Skipping invalid directory 'C:/Ruby64'
it also makes problem
C:\Ruby22\devkit>ruby dk.rb install
[ERROR] Skipping invalid directory 'C:/Ruby200'
[INFO] Updating convenience notice gem override for 'C:/Ruby22'
[INFO] Installing 'C:/Ruby22/lib/ruby/site_ruby/devkit.rb'
[ERROR] Skipping invalid directory 'C:/Ruby64'