Dear all, I am a new "Ruby/Ruby on Rails" programmer. I am not sure this is the correct forum for my question. If this is not the correct forum, please indicate me a more appropriate one. When my application implements a URL, an array, @session, is used in several methods of a first controller. The application redirects to another page, making a second controller being invoked. This controller does not use the array. When the method of the second controller ends, a layout is implicitly rendered. The layout has the following code: ... <body> <% if @session.length == 0 then %> ... I got the following error message when trying to implement the URL: undefined method `length' for nil:NilClass. What should I do in order to the array be recognized by the second controller? Regards, António. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/7a6efefa-3555-4d20-b467-a344f56c3c19%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.