Undefined method `^' for "e":String

Rails
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:

New page


2:
3: <% form_for(@page) do |f| %>
4: <%= f.error_messages %>
5:
6:

/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:

New page


2:
3: <% form_for(@page) do |f| %>
4: <%= f.error_messages %>
5:
6: 

(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

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.

5

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.

On Wed, Oct 28, 2009 at 9:55 AM, Sijo k g
[email protected] wrote:

Instead of these do like
Posted via http://www.ruby-forum.com/.

–
Regards,
Kashyap

6

Marnen Laibow-Koser wrote:

You don’t need to create a new app.

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]

It really doesn’t matter since I literally just began toying around with
RoR. I already deleted the 2 sample apps I generated last night; they
were hardly touched anyway. No big deal :stuck_out_tongue:

7

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,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]