trying to run `jekyll serve -w -t` I've got an error: Configuration file: /work/GitHub/zaufi.github.com/_config.yml Deprecation: Auto-regeneration can no longer be set from your configuration file(s). Use the --[no-]watch/-w command-line option instead. Source: /work/GitHub/zaufi.github.com Destination: /work/GitHub/zaufi.github.com/_site Generating... Build Warning: Layout 'nil' requested in atom.xml does not exist. Build Warning: Layout 'nil' requested in rss-kde.xml does not exist. done. /usr/lib64/ruby/gems/2.0.0/gems/celluloid-0.15.2/lib/celluloid/receivers.rb:9:in `initialize': undefined method `new' for Timers:Module (NoMethodError) from /usr/lib64/ruby/gems/2.0.0/gems/celluloid-0.15.2/lib/celluloid/actor.rb:149:in `new' from /usr/lib64/ruby/gems/2.0.0/gems/celluloid-0.15.2/lib/celluloid/actor.rb:149:in `initialize' from /usr/lib64/ruby/gems/2.0.0/gems/celluloid-0.15.2/lib/celluloid.rb:188:in `new' from /usr/lib64/ruby/gems/2.0.0/gems/celluloid-0.15.2/lib/celluloid.rb:188:in `new' from /usr/lib64/ruby/gems/2.0.0/gems/celluloid-0.15.2/lib/celluloid/supervision_group.rb:15:in `run!' from /usr/lib64/ruby/gems/2.0.0/gems/listen-2.7.5/lib/listen/listener.rb:138:in `_init_actors' from /usr/lib64/ruby/gems/2.0.0/gems/listen-2.7.5/lib/listen/listener.rb:37:in `start' from /usr/lib64/ruby/gems/2.0.0/gems/jekyll-watch-1.1.1/lib/jekyll/watcher.rb:7:in `watch' from /usr/lib64/ruby/gems/2.0.0/gems/jekyll-2.4.0/lib/jekyll/commands/build.rb:67:in `watch' from /usr/lib64/ruby/gems/2.0.0/gems/jekyll-2.4.0/lib/jekyll/commands/build.rb:37:in `process' from /usr/lib64/ruby/gems/2.0.0/gems/jekyll-2.4.0/lib/jekyll/commands/serve.rb:25:in `block (2 levels) in init_with_program' from /usr/lib64/ruby/gems/2.0.0/gems/mercenary-0.3.4/lib/mercenary/command.rb:220:in `call' from /usr/lib64/ruby/gems/2.0.0/gems/mercenary-0.3.4/lib/mercenary/command.rb:220:in `block in execute' from /usr/lib64/ruby/gems/2.0.0/gems/mercenary-0.3.4/lib/mercenary/command.rb:220:in `each' from /usr/lib64/ruby/gems/2.0.0/gems/mercenary-0.3.4/lib/mercenary/command.rb:220:in `execute' from /usr/lib64/ruby/gems/2.0.0/gems/mercenary-0.3.4/lib/mercenary/program.rb:35:in `go' from /usr/lib64/ruby/gems/2.0.0/gems/mercenary-0.3.4/lib/mercenary.rb:22:in `program' from /usr/lib64/ruby/gems/2.0.0/gems/jekyll-2.4.0/bin/jekyll:18:in `<top (required)>' from /usr/bin/jekyll:8:in `load' from /usr/bin/jekyll:8:in `<main>' Reproducible: Always