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PODelayedJob: "Job failed to load: uninitialized constant Syck::Syck"
 

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    <p>I am using Ruby on Rails 3.1 and the DelayedJob gem. I have a Contact Us form through which people can contact me. When I submit that I get the following error</p> <pre><code>`last_error` = '{Job failed to load: uninitialized constant Syck::Syck. Handler: \"--- !ruby/struct:Delayed::PerformableMailer ... </code></pre> <p>However, I have also others forms that send e-mails (eg: Sign Up and Sign In users) and those work as expected. The only problem seems to occur with the Contact Us form.</p> <p>I read others related problem posts but I still cannot make that to work... <strong>how can I solve the problem?</strong></p> <p>P.S.: It seems that before upgrading to Rails 3.1 it worked.</p> <hr> <p><strong>UPDATE</strong> for <em>@Shaun</em></p> <p>Now my 'boot.rb' file is</p> <pre><code>require 'rubygems' require 'yaml' YAML::ENGINE.yamler= 'syck' # Set up gems listed in the Gemfile. gemfile = File.expand_path('../../Gemfile', __FILE__) begin ENV['BUNDLE_GEMFILE'] = gemfile require 'bundler' Bundler.setup rescue Bundler::GemNotFound =&gt; e STDERR.puts e.message STDERR.puts "Try running `bundle install`." exit! end if File.exist?(gemfile) </code></pre> <p>After requiring <code>yaml</code> I get this error (note: <code>Syck::Syck::BadAlias</code> is "a new"\"different from the previous" error):</p> <pre><code>{Job failed to load: uninitialized constant Syck::Syck::BadAlias. Handler: \"--- !ruby/struct:Delayed::PerformableMailer ... </code></pre> <p>My 'database.yml' file is:</p> <pre><code>development: adapter: mysql2 encoding: utf8 reconnect: false database: app_name_development pool: 5 username: root password: socket: /tmp/mysql.sock test: adapter: mysql2 encoding: utf8 reconnect: false database: app_name_test pool: 5 username: root password: socket: /tmp/mysql.sock production: adapter: mysql2 encoding: utf8 reconnect: false database: app_name_production pool: 5 username: root password: ******* socket: /var/run/mysqld/mysqld.sock </code></pre> <hr> <p><strong>UPDATE</strong> for <em>@KensoDev</em></p> <p>My 'Gemfile' file is:</p> <pre><code>source 'http://rubygems.org' gem 'rails', '3.1.0' gem 'rake' gem 'mysql2' gem 'paperclip', '~&gt; 2.3' gem 'will_paginate', '~&gt; 3.0.pre2' gem 'delayed_job' gem 'memcache-client', '1.8.5' group :assets do gem 'sass-rails', '~&gt; 3.1.0' gem 'coffee-rails', '~&gt; 3.1.0' gem 'uglifier' end gem 'jquery-rails' gem 'capistrano' gem "rdoc", "~&gt; 3.6.1" group :test do # Pretty printed test output gem 'turn', :require =&gt; false end </code></pre> <hr> <p><strong>ADDITIONAL INFORMATION</strong></p> <p>At this time, in order to call the delivering method, I use the following code:</p> <pre><code>::Pages::Mailer.delay.contact_us(@user) # It doesn't work and doesn't send the e-mail </code></pre> <p>On the other hand, if I use the following code:</p> <pre><code># Note: It doesn't have the '::' at the beginning Pages::Mailer.delay.contact_us(@user) # It doesn't work and raise the 'NameError' (described below) </code></pre> <p>I get this error:</p> <pre><code>NameError (uninitialized constant ActionController::Caching::Pages::Mailer) </code></pre> <p>The same happens if I use the "not delayed" version:</p> <pre><code>::Pages::Mailer.contact_us(@user).deliver # It works and SENDS THE E-MAIL!!! Pages::Mailer.contact_us(@user).deliver # It doesn't work and raise the 'NameError' </code></pre>
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