(Looks like some ruby-on-rails error)

index.html.erb

<h1>Listing posts</h1>

<table>
  <tr>
    <th>Name</th>
    <th>Title</th>
    <th>Content</th>
  </tr>

<% @posts.each do |post| %>
  <tr>
    <td><%=h post.name %></td>
    <td><%=h post.title %></td>
    <td><%=h post.content %></td>
    <td><%= link_to 'Show', post %></td>
    <td><%= link_to 'Edit', edit_post_path(post) %></td>
    <td><%= link_to 'Destroy', post, :confirm => 'Are you sure?', :method => :delete %></td>
  </tr>
<% end %>
</table>

<br />

<%= link_to 'New post', new_post_path %>

new

 NoMethodError in Posts#new

Showing app/views/posts/new.html.erb where line #3 raised:

undefined method `^' for "4":String

Extracted source (around line #3):

1: <h1>New post</h1>
2: 
3: <% form_for(@post) do |f| %>
4:   <%= f.error_messages %>
5: 
6:   <p>

RAILS_ROOT: /home/tristan/projects/rubytests
Application Trace | Framework Trace | Full Trace

/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:46:in `block in secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `each'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:28:in `verify'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:156:in `unmarshal'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:145:in `load_session'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:62:in `block in load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:61:in `load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:28:in `[]'
/home/tristan/.gem/ruby/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'

/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:46:in `block in secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `each'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:28:in `verify'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:156:in `unmarshal'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:145:in `load_session'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:62:in `block in load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:61:in `load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:28:in `[]'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/request_forgery_protection.rb:102:in `form_authenticity_token'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:476:in `token_tag'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:453:in `extra_tags_for_form'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:461:in `form_tag_html'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:41:in `form_tag'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_helper.rb:281:in `form_for'
/home/tristan/projects/rubytests/app/views/posts/new.html.erb:3:in `_run_erb_app47views47posts47new46html46erb'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/renderable.rb:34:in `block in render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:301:in `with_template'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/renderable.rb:30:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/template.rb:199:in `render_template'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:260:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:343:in `_render_with_layout'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:257:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:1250:in `render_for_file'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:951:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:51:in `block in render_with_benchmark'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/usr/lib/ruby/1.9.1/benchmark.rb:309:in `realtime'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:135:in `block in custom'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:179:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:179:in `block in respond'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:173:in `each'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:173:in `respond'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:107:in `respond_to'
/home/tristan/projects/rubytests/app/controllers/posts_controller.rb:29:in `new'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:1331:in `perform_action'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:617:in `call_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:610:in `perform_action_with_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:68:in `block in perform_action_with_benchmark'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/usr/lib/ruby/1.9.1/benchmark.rb:309:in `realtime'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/rescue.rb:160:in `perform_action_with_rescue'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/flash.rb:146:in `perform_action_with_flash'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:532:in `process'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:606:in `process_with_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:391:in `process'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:386:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/routing/route_set.rb:437:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:87:in `dispatch'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:121:in `_call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:130:in `block in build_middleware_stack'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:29:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:29:in `block in call'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:9:in `cache'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:28:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/head.rb:9:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/methodoverride.rb:24:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/params_parser.rb:15:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:93:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/failsafe.rb:26:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/lock.rb:11:in `block in call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/lock.rb:11:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:114:in `block in call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/reloader.rb:34:in `run'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:108:in `call'
/usr/lib/ruby/gems/1.9.1/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/urlmap.rb:46:in `block in call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/urlmap.rb:40:in `each'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/urlmap.rb:40:in `call'
/usr/lib/ruby/gems/1.9.1/gems/rails-2.3.4/lib/rails/rack/log_tailer.rb:17:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/content_length.rb:13:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/handler/webrick.rb:46:in `service'
/usr/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/usr/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/usr/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'

/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:46:in `block in secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `each'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:28:in `verify'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:156:in `unmarshal'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:145:in `load_session'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:62:in `block in load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:61:in `load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:28:in `[]'
/home/tristan/.gem/ruby/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'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:476:in `token_tag'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:453:in `extra_tags_for_form'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:461:in `form_tag_html'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_tag_helper.rb:41:in `form_tag'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/helpers/form_helper.rb:281:in `form_for'
/home/tristan/projects/rubytests/app/views/posts/new.html.erb:3:in `_run_erb_app47views47posts47new46html46erb'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/renderable.rb:34:in `block in render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:301:in `with_template'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/renderable.rb:30:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/template.rb:199:in `render_template'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:260:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:343:in `_render_with_layout'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:257:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:1250:in `render_for_file'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:951:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:51:in `block in render_with_benchmark'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/usr/lib/ruby/1.9.1/benchmark.rb:309:in `realtime'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:135:in `block in custom'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:179:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:179:in `block in respond'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:173:in `each'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:173:in `respond'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:107:in `respond_to'
/home/tristan/projects/rubytests/app/controllers/posts_controller.rb:29:in `new'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:1331:in `perform_action'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:617:in `call_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:610:in `perform_action_with_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:68:in `block in perform_action_with_benchmark'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/usr/lib/ruby/1.9.1/benchmark.rb:309:in `realtime'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/rescue.rb:160:in `perform_action_with_rescue'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/flash.rb:146:in `perform_action_with_flash'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:532:in `process'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:606:in `process_with_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:391:in `process'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:386:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/routing/route_set.rb:437:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:87:in `dispatch'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:121:in `_call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:130:in `block in build_middleware_stack'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:29:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:29:in `block in call'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:9:in `cache'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:28:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/head.rb:9:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/methodoverride.rb:24:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/params_parser.rb:15:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:93:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/failsafe.rb:26:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/lock.rb:11:in `block in call'
:8:in `synchronize'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/lock.rb:11:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:114:in `block in call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/reloader.rb:34:in `run'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:108:in `call'
/usr/lib/ruby/gems/1.9.1/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/urlmap.rb:46:in `block in call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/urlmap.rb:40:in `each'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/urlmap.rb:40:in `call'
/usr/lib/ruby/gems/1.9.1/gems/rails-2.3.4/lib/rails/rack/log_tailer.rb:17:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/content_length.rb:13:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack/handler/webrick.rb:46:in `service'
/usr/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/usr/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/usr/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'

Request

Parameters:

None

Show session dump

--- 

Response

Headers:

{"Cache-Control"=>"no-cache",
 "Content-Type"=>"text/html"}

new.html.erb

<h1>New post</h1>

<% form_for(@post) do |f| %>
  <%= f.error_messages %>

  <p>
    <%= f.label :name %><br />
    <%= f.text_field :name %>
  </p>
  <p>
    <%= f.label :title %><br />
    <%= f.text_field :title %>
  </p>
  <p>
    <%= f.label :content %><br />
    <%= f.text_area :content %>
  </p>
  <p>
    <%= f.submit 'Create' %>
  </p>
<% end %>

<%= link_to 'Back', posts_path %>

posts

NoMethodError in Posts#index 

Showing app/views/layouts/posts.html.erb where line #12 raised: 
undefined method `^' for "4":String


Extracted source (around line #12): 
9: </head>
10: <body>
11: 
12: <p style="color: green"><%= flash[:notice] %></p>
13: 
14: <%= yield %>
15: 


RAILS_ROOT: /home/tristan/projects/rubytests
Application Trace | Framework Trace | Full Trace 
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:46:in `block in secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `each'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:45:in `secure_compare'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/message_verifier.rb:28:in `verify'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:156:in `unmarshal'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:145:in `load_session'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:62:in `block in load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:70:in `stale_session_check!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:61:in `load!'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/session/abstract_store.rb:28:in `[]'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/flash.rb:163:in `flash'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:197:in `flash'
/home/tristan/projects/rubytests/app/views/layouts/posts.html.erb:12:in `_run_erb_app47views47layouts47posts46html46erb'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/renderable.rb:34:in `block in render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:301:in `with_template'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/renderable.rb:30:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/template.rb:199:in `render_template'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:260:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:347:in `_render_with_layout'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_view/base.rb:257:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:1250:in `render_for_file'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:951:in `render'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:51:in `block in render_with_benchmark'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/usr/lib/ruby/1.9.1/benchmark.rb:309:in `realtime'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:135:in `block in custom'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:179:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:179:in `block in respond'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:173:in `each'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:173:in `respond'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/mime_responds.rb:107:in `respond_to'
/home/tristan/projects/rubytests/app/controllers/posts_controller.rb:7:in `index'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:1331:in `perform_action'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:617:in `call_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:610:in `perform_action_with_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:68:in `block in perform_action_with_benchmark'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `block in ms'
/usr/lib/ruby/1.9.1/benchmark.rb:309:in `realtime'
/usr/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/rescue.rb:160:in `perform_action_with_rescue'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/flash.rb:146:in `perform_action_with_flash'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:532:in `process'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/filters.rb:606:in `process_with_filters'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:391:in `process'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/base.rb:386:in `call'
/home/tristan/.gem/ruby/1.9.1/gems/actionpack-2.3.4/lib/action_controller/routing/route_set.rb:437:in `call'
Request

Parameters: 
None


Show session dump
Response

Headers: 
{"Cache-Control"=>"no-cache",
 "Content-Type"=>"text/html"}

posts.html.erb

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
  <meta http-equiv="content-type" content="text/html;charset=UTF-8" />
  <title>Posts: <%= controller.action_name %></title>
  <%= stylesheet_link_tag 'scaffold' %>
</head>
<body>

<p style="color: green"><%= flash[:notice] %></p>

<%= yield %>

</body>
</html>

posts_controller.rb

class PostsController < ApplicationController
  # GET /posts
  # GET /posts.xml
  def index
    @posts = Post.all

    respond_to do |format|
      format.html # index.html.erb
      format.xml  { render :xml => @posts }
    end
  end

  # GET /posts/1
  # GET /posts/1.xml
  def show
    @post = Post.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @post }
    end
  end

  # GET /posts/new
  # GET /posts/new.xml
  def new
    @post = Post.new

    respond_to do |format|
      format.html # new.html.erb
      format.xml  { render :xml => @post }
    end
  end

  # GET /posts/1/edit
  def edit
    @post = Post.find(params[:id])
  end

  # POST /posts
  # POST /posts.xml
  def create
    @post = Post.new(params[:post])

    respond_to do |format|
      if @post.save
        flash[:notice] = 'Post was successfully created.'
        format.html { redirect_to(@post) }
        format.xml  { render :xml => @post, :status => :created, :location => @post }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @post.errors, :status => :unprocessable_entity }
      end
    end
  end

  # PUT /posts/1
  # PUT /posts/1.xml
  def update
    @post = Post.find(params[:id])

    respond_to do |format|
      if @post.update_attributes(params[:post])
        flash[:notice] = 'Post was successfully updated.'
        format.html { redirect_to(@post) }
        format.xml  { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @post.errors, :status => :unprocessable_entity }
      end
    end
  end

  # DELETE /posts/1
  # DELETE /posts/1.xml
  def destroy
    @post = Post.find(params[:id])
    @post.destroy

    respond_to do |format|
      format.html { redirect_to(posts_url) }
      format.xml  { head :ok }
    end
  end
end