"ERROR TypeError: can't dup NilClass" in a Rails 3 app? Any ideas - I'm just hitting the home page and get this...it was working just before...
Gregs-MacBook-Pro:test3 greg$ rails console Loading development environment (Rails 3.2.1)
exit
Gregs-MacBook-Pro:test3 greg$ rails server => Booting WEBrick => Rails 3.2.1 application starting in development on http://0.0.0.0:3000 => Call with -d to detach => Ctrl-C to shutdown server [2012-02-13 09:19:59] INFO WEBrick 1.3.1 [2012-02-13 09:19:59] INFO ruby 1.8.7 (2010-01-10) [universal- darwin11.0] [2012-02-13 09:19:59] INFO WEBrick::HTTPServer#start: pid=8435 port=3000 [2012-02-13 09:20:27] ERROR TypeError: can't dup NilClass /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/httprequest.rb:204:in `dup' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/httprequest.rb:204:in `meta_vars' /Library/Ruby/Gems/1.8/gems/rack-1.4.1/lib/rack/handler/ webrick.rb:34:in `service' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/httpserver.rb:104:in `service' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/httpserver.rb:65:in `run' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:173:in `start_thread' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:162:in `start' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:162:in `start_thread' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:95:in `start' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:92:in `each' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:92:in `start' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:23:in `start' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/1.8/webrick/server.rb:82:in `start' /Library/Ruby/Gems/1.8/gems/rack-1.4.1/lib/rack/handler/ webrick.rb:13:in `run' /Library/Ruby/Gems/1.8/gems/rack-1.4.1/lib/rack/server.rb: 265:in `start' /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/commands/ server.rb:70:in `start' /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/ commands.rb:55 /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/ commands.rb:50:in `tap' /Library/Ruby/Gems/1.8/gems/railties-3.2.1/lib/rails/ commands.rb:50 script/rails:6:in `require' script/rails:6