More info: I reproduced this in development mode on my OS X machine, again using Ruby 1.9.2. I now get a stack trace:
Error during failsafe response: ActionView::Template::Error <path>/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/whiny_nil.rb:48:in `method_missing' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_dispatch/http/parameters.rb:10:in `parameters' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb:3:in <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_view/template.rb:135:in `block in render' <path>/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/notifications.rb:54:in `instrument' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_view/template.rb:127:in `render' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_view/render/rendering.rb:59:in `block in _render_template' <path>/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/notifications.rb:52:in `block in instrument' <path>/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/notifications/instrumenter.rb:21:in `instrument' <path>/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/notifications.rb:52:in `instrument' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_view/render/rendering.rb:56:in `_render_template' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_view/render/rendering.rb:26:in `render' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_dispatch/middleware/show_exceptions.rb:88:in `rescue_action_locally' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_dispatch/middleware/show_exceptions.rb:68:in `render_exception' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_dispatch/middleware/show_exceptions.rb:59:in `rescue in call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_dispatch/middleware/show_exceptions.rb:46:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/rack/logger.rb:13:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/rack-1.2.1/lib/rack/runtime.rb:17:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/activesupport-3.0.3/lib/active_support/cache/strategy/local_cache.rb:72:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/rack-1.2.1/lib/rack/lock.rb:11:in `block in call' <internal:prelude>:10:in `synchronize' <path>/.rvm/gems/ruby-1.9.2-p136/gems/rack-1.2.1/lib/rack/lock.rb:11:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/actionpack-3.0.3/lib/action_dispatch/middleware/static.rb:30:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/application.rb:168:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/application.rb:77:in `method_missing' <path>/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/rack/log_tailer.rb:14:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/rack-1.2.1/lib/rack/content_length.rb:13:in `call' <path>/.rvm/gems/ruby-1.9.2-p136/gems/rack-1.2.1/lib/rack/handler/webrick.rb:52:in `service' <path>/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service' <path>/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run' <path>/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread' -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.

