undefined method `^' for "e":String

rubyonrails-talk
1

I'm attempting to learn Ruby on Rails, but these errors aren't helping. I'm currently trying to follow the lessons available on www.learningrails.com. I received this error after trying to visit a page generated by using the scaffold command. Actually, this is all I did up until the error:

rails sample2 -d mysql mysqladmin -u root -p create sample2_development ruby script/generate controller pages home resources about contact ruby script/generate scaffold page name:string title:string body:text rake db:migrate

Then after visiting localhost:3000/pages/new, this error occurred...

Showing app/views/pages/new.html.erb where line #3 raised: undefined method `^' for "e":String

Extracted source (around line #3): 1: <h1>New page</h1> 2: 3: <% form_for(@page) do |f| %> 4: <%= f.error_messages %> 5: 6: <p>

/usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:46:in `block in secure_compare' /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `each' /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `secure_compare' /usr/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:28:in `verify' /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:156:in `unmarshal' /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:145:in `load_session' /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:62:in `block in load!' /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!' /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:61:in `load!' /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:28:in `' /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.4/lib/action_controller/request_forgery_protection.rb:102:in `form_authenticity_token' (eval):2:in `form_authenticity_token' /Users/username/Sites/Ruby/sample2/app/views/pages/new.html.erb:3:in `_run_erb_app47views47pages47new46html46erb' /Users/username/Sites/Ruby/sample2/app/controllers/pages_controller.rb:29:in `new'

I read another post on here that reported an error similar to this and it lead to this patch: https://rails.lighthouseapp.com/projects/8994/tickets/3144/

However, this patch is apparently specifying message_verifier.rb, which I do not see in my error, and I do not know how to apply patches to Rails.

If anyone could be of assistance I would greatly appreciate it.

I'm using: Ruby 1.9.1p243 (2009-07-16 revision 24175) Rails 2.3.4 RubyGems 1.3.5 MySQLAdmin Ver 8.42 Distrib 5.1.40

2

Also, this was what popped out of the terminal:

ActionView::TemplateError (undefined method `^' for "e":String) on line #3 of app/views/pages/new.html.erb: 1: <h1>New page</h1> 2: 3: <% form_for(@page) do |f| %> 4: <%= f.error_messages %> 5: 6: <p>

    (eval):2:in `form_authenticity_token'     app/views/pages/new.html.erb:3     app/controllers/pages_controller.rb:29:in `new'     <internal:prelude>:8:in `synchronize'     /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'     /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'     /usr/local/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'

3

Hi Joe dude

Firstly advise you to use any name other than page for the resource

ruby script/generate controller pages home resources about contact ruby script/generate scaffold page name:string title:string body:text rake db:migrate

    Instead of these do like ruby script/generate scaffold Page name:string title:string body:text rake db:migrate     Now check

     And add the additional routes as you go through

Sijo K George

4

Check out this link - https://rails.lighthouseapp.com/projects/8994/tickets/3144-undefined-method-for-string-ror-234

There is a bug in rails 2.3.4 ... that throws the same errors you are mentioning.

5

C K Kashyap wrote:

Check out this link - #3144 undefined method `^' for String - RoR 2.3.4 - Ruby on Rails - rails

There is a bug in rails 2.3.4 ... that throws the same errors you are mentioning.

-- Regards, Kashyap

Well I figured out how to apply this patch by visiting this site --

I'll try creating a new Rails app and see what happens.

6

Joe dude wrote:

C K Kashyap wrote:

Check out this link - #3144 undefined method `^' for String - RoR 2.3.4 - Ruby on Rails - rails

There is a bug in rails 2.3.4 ... that throws the same errors you are mentioning.

-- Regards, Kashyap

Well I figured out how to apply this patch by visiting this site -- How do you apply a patch to ruby on rails? - Stack Overflow

I'll try creating a new Rails app and see what happens.

You don't need to create a new app.

Best,