Other issue
$ jekyll serve
Traceback (most recent call last):
10: from /Users/ryan/.rbenv/versions/2.5.1/bin/jekyll:23:in <main>' 9: from /Users/ryan/.rbenv/versions/2.5.1/bin/jekyll:23:in load'
8: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/jekyll-3.8.4/exe/jekyll:11:in <top (required)>' 7: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/jekyll-3.8.4/lib/jekyll/plugin_manager.rb:50:in require_from_bundler'
6: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.5/lib/bundler.rb:107:in setup' 5: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.5/lib/bundler/runtime.rb:26:in setup'
4: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.5/lib/bundler/runtime.rb:26:in map' 3: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/2.5.0/forwardable.rb:229:in each'
2: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/2.5.0/forwardable.rb:229:in each' 1: from /Users/ryan/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.5/lib/bundler/runtime.rb:31:in block in setup'
/Users/ryan/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.5/lib/bundler/runtime.rb:313:in check_for_activated_spec!': You have already activated i18n 0.9.5, but your Gemfile requires i18n 0.8.6. Prepending bundle exec` to your command may solve this. (Gem::LoadError)