gistfile1.txt

$ bundle exec middleman server --verbose
== The Middleman is loading             
== Activating: file_watcher              
== Activating: front_matter                                          
== Activating: data                                                         
== Activating: inline_url_rewriter                      
== Activating: sitemap_ondisk                                        
== Activating: sitemap_import                                        
== Activating: sitemap_endpoint                                                                               
== Activating: sitemap_proxies                                            
== Activating: sitemap_redirects
== Activating: sitemap_move_files
== Activating: sitemap_ignore
== Activating: show_exceptions
== Activating: external_helpers
== Activating: erb_renderer
== Activating: coffee_renderer
== Activating: haml_renderer
== Activating: sass_renderer
== Activating: markdown_renderer
== Failed Activation `liquid_renderer` : cannot load such file -- liquid
== Failed Activation `slim_renderer` : cannot load such file -- slim
== Failed Activation `less_renderer` : cannot load such file -- less
== Failed Activation `stylus_renderer` : cannot load such file -- stylus
== Activating: default_helpers
== Activating: lorem
== Activating: routing
== Activating: collections
== Change (#<Set: {:source}>): index.html.erb
== Change (#<Set: {:source}>): images/.keep
== Change (#<Set: {:source}>): layouts/layout.erb
== Change (#<Set: {:source}>): javascripts/site.js
== Change (#<Set: {:source}>): stylesheets/site.css.scss
== Rebuilding resource list
== Reading: Local config: config.rb
Loaded extensions:
== Extension: file_watcher
== Extension: front_matter
== Extension: data
== Extension: inline_url_rewriter
== Extension: sitemap_ondisk
== Extension: sitemap_import
== Extension: sitemap_endpoint
== Extension: sitemap_proxies
== Extension: sitemap_redirects
== Extension: sitemap_move_files
== Extension: sitemap_ignore
== Extension: show_exceptions
== Extension: external_helpers
== Extension: erb_renderer
== Extension: coffee_renderer
== Extension: haml_renderer
== Extension: sass_renderer
== Extension: markdown_renderer
== Extension: default_helpers
== Extension: lorem
== Extension: routing
== Extension: collections
== Change (#<Set: {:source}>): index.html.erb
== Change (#<Set: {:source}>): images/.keep
== Change (#<Set: {:source}>): layouts/layout.erb
== Change (#<Set: {:source}>): javascripts/site.js
== Change (#<Set: {:source}>): stylesheets/site.css.scss
== Requesting resource list rebuilding: touched_file
== Requesting resource list rebuilding: registered_new_manipulator_front_matter
== Requesting resource list rebuilding: registered_new_manipulator_sitemap_ondisk
== Requesting resource list rebuilding: registered_new_manipulator_sitemap_import
== Requesting resource list rebuilding: registered_new_manipulator_sitemap_endpoint
== Requesting resource list rebuilding: registered_new_manipulator_sitemap_proxies
== Requesting resource list rebuilding: registered_new_manipulator_sitemap_redirects
== Requesting resource list rebuilding: registered_new_manipulator_sitemap_move_files
== Requesting resource list rebuilding: registered_new_manipulator_sitemap_ignore
== Requesting resource list rebuilding: registered_new_manipulator_routing
== Requesting resource list rebuilding: registered_new_manipulator_routing
== Requesting resource list rebuilding: registered_new_manipulator_collections
== Rebuilding resource list
== Running manipulator: sitemap_ondisk (0)
== Running manipulator: sitemap_endpoint (0)
== Running manipulator: sitemap_proxies (0)
== Running manipulator: sitemap_redirects (0)
== Running manipulator: sitemap_ignore (0)
== Running manipulator: sitemap_import (1)
== Running manipulator: routing (10)
== Running manipulator: front_matter (20)
== Running manipulator: sitemap_move_files (101)
== Running manipulator: collections (110)                                     
== Running manipulator: routing (130)
== Change (#<Set: {:reload}>): config.rb  
[2018-05-01 23:36:33] INFO  WEBrick 1.3.1   
[2018-05-01 23:36:33] INFO  ruby 2.3.7 (2018-03-28) [x86_64-darwin17]
== Server information is provided by Middleman::PreviewServer::AllInterfaces
== The Middleman is running in "development" environment
== The Middleman preview server is bound to ":::4567", "0.0.0.0:4567"
== View your site at "http://localhost:4567", "http://127.0.0.1:4567"
== Inspect your site configuration at "http://localhost:4567/__middleman", "http://127.0.0.1:4567/__middleman"
[2018-05-01 23:36:33] INFO  WEBrick::HTTPServer#start: pid=40395 port=4567
[2018-05-01 23:37:16] ERROR NoMethodError: undefined method `run' for Middleman::PreviewServer:Class
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/middleman-core-4.3.0.rc.1/lib/middleman-core/preview_server.rb:203:in `block in initialize_new_app'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/contracts-0.16.0/lib/contracts/call_with.rb:78:in `block in call_with'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:55:in `instance_eval'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:55:in `initialize'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:160:in `new'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:160:in `block in generate_map'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:160:in `each'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:160:in `generate_map'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:145:in `to_app'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/builder.rb:153:in `call'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rack-2.0.5/lib/rack/handler/webrick.rb:86:in `service'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
        /Users/sunao-komuro/.rbenv/versions/2.3.7/lib/ruby/2.3.0/webrick/server.rb:314:in `block in start_thread'