C:\Devkit>gem install rails --version 5.0.0
Fetching: concurrent-ruby-1.0.5.gem (100%)
Successfully installed concurrent-ruby-1.0.5
Fetching: i18n-0.9.3.gem (100%)
Successfully installed i18n-0.9.3
Fetching: thread_safe-0.3.6.gem (100%)
Successfully installed thread_safe-0.3.6
Fetching: tzinfo-1.2.4.gem (100%)
Successfully installed tzinfo-1.2.4
Fetching: activesupport-5.0.0.gem (100%)
Successfully installed activesupport-5.0.0
Fetching: rack-2.0.3.gem (100%)
Successfully installed rack-2.0.3
Fetching: rack-test-0.6.3.gem (100%)
Successfully installed rack-test-0.6.3
Fetching: mini_portile2-2.3.0.gem (100%)
Successfully installed mini_portile2-2.3.0
Fetching: nokogiri-1.8.1-x64-mingw32.gem (100%)
ERROR: Error installing rails:
The last version of nokogiri (>= 1.6) to support your Ruby & RubyGems was 1.8.1. Try installing it with `gem install nokogiri -v 1.8.1` and then running the current command again
nokogiri requires Ruby version < 2.5, >= 2.2. The current ruby version is 2.5.0.
C:\Devkit>gem install nokogiri -v 1.8.1
ERROR: Error installing nokogiri:
The last version of nokogiri (= 1.8.1) to support your Ruby & RubyGems was 1.8.1. Try installing it with `gem install nokogiri -v 1.8.1`
nokogiri requires Ruby version < 2.5, >= 2.2. The current ruby version is 2.5.0.
C:\Devkit>ruby -v
ruby 2.5.0p0 (2017-12-25 revision 61468) [x64-mingw32]