Hi! This may have been answered somewhere before, but my searches turned
up nothing.
I am developing a Rails app that generally works, but just generated a
new controller (“list” controller), did not add anything, and when I go
to
http://localhost:3000/list/
I receive an error. It appears that the page was properly generated, but
somewhere preparing the result raised this exception
undefined method `protocol' for nil:NilClass
(The protocol method returns either http: or https:) I have other
controllers that work fine, but I’ve been stumped with this one. I am
pasting the error page and development log below. Versions are in the
trace.
Does anyone know the cause, or have an idea/hint/solution for this? 
Thanks!
Allen
======= Error Page:
NoMethodError in List#index
undefined method `protocol’ for nil:NilClass
script/server:49
======= development.log:
Processing ListController#index (for 127.0.0.1 at Sat Nov 12 10:29:43
EST 2005)
Parameters: {“action”=>“index”, “controller”=>“list”}
Rendering within layouts/application
Rendering list/index (200 OK)
NoMethodError (undefined method `protocol’ for nil:NilClass):
/usr/lib/ruby/gems/1.8/gems/activesupport-1.1.1/lib/active_support/whiny_nil.rb:30:in
`method_missing’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/base.rb:807:in
`complete_request_uri’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/benchmarking.rb:45:in
`perform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/rescue.rb:80:in
`perform_action’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/base.rb:356:in
process' /usr/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/dispatcher.rb:32:in dispatch’
/usr/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/webrick_server.rb:105:in
`handle_dispatch’
/usr/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/webrick_server.rb:71:in
service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in service’
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/lib/ruby/1.8/webrick/server.rb:173:in start_thread’
/usr/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/lib/ruby/1.8/webrick/server.rb:95:in start’
/usr/lib/ruby/1.8/webrick/server.rb:92:in start' /usr/lib/ruby/1.8/webrick/server.rb:23:in start’
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start’
/usr/lib/ruby/gems/1.8/gems/rails-0.13.1/lib/webrick_server.rb:57:in
`dispatch’
script/server:49
Rendering
/usr/lib/ruby/gems/1.8/gems/actionpack-1.9.1/lib/action_controller/templates/rescues/layout.rhtml
(500 Internal Error)
Other controllers work