DelayedJob：“Job failed to load：uninitialized constant Syck :: Syck” [英] DelayedJob: "Job failed to load: uninitialized constant Syck::Syck"

问题描述

我正在使用Ruby on Rails 3.1和DelayedJob gem。我有一个联系我们的形式，人们可以通过它联系我。当我提交我收到以下错误

 `last_error` ='{作业无法加载：未初始化的常量Syck :: Syck 。处理程序：\---！ruby / struct：Delayed :: PerformableMailer ... 
  

，我还有其他发送电子邮件的表单（例如：注册和登录用户），这些工作正如预期的那样，联系我们表单只出现问题。

我阅读了其他相关的问题帖子，但我仍然无法使此工作... 我如何解决问题？

PS：在升级到Rails 3.1之前，似乎是有效的。

---

更新 > @Shaun

现在我的'boot.rb'文件是

 code> require'rubygems'
 require'yaml'
 YAML :: ENGINE.yamler ='syck'
 
＃设置Gemfile中列出的宝石
 gemfile = File.expand_path（'../../ Gemfile'，__FILE__）
 begin 
 ENV ['BUNDLE_GEMFILE'] = gemfile 
 require'bundler'
 Bundler .setup 
 rescue Bundler :: GemNotFound => e 
 STDERR.puts e。消息
 STDERR.puts尝试运行`bundle install`。
 exit！ 
如果File.exist？（gemfile）
  

需要 yaml 我收到这个错误（注意： Syck :: Syck :: BadAlias 是不同于以前的错误的新\ ：

  {无法加载作业：未初始化的常量Syck :: Syck :: BadAlias。处理程序：\---！ruby / struct：Delayed :: PerformableMailer ... 
  

我的'database.yml'文件是：

 开发：
适配器：mysql2 
 encoding：utf8 
重新连接：false 
数据库：app_name_development 
池：5 
用户名：root 
密码：
套接字：/tmp/mysql.sock 
 
 test：
适配器：mysql2 
编码：utf8 
重新连接：false 
数据库：app_name_test 
池：5 
用户名：root 
密码：
套接字：/tmp/mysql.sock 
 
生产：
适配器：mysql2 
编码：utf8 
重新连接：假
数据库：app_name_production 
池：5 
用户名：root 
密码：******* 
套接字：/var/run/mysqld/mysqld.sock 
  

---

更新 for @KensoDev

我的'Gemfile'文件是：

  'http://rubygems.org'
 
 gem'rails'，'3.1.0'
 gem'rake'
 
 gem'mysql2'
 gem'paperclip'，'〜> 2.3'
 gem'will_paginate'，'〜> 3.0.pre2'
 gem'delayed_job'
 gem'memcache-client'，'1.8.5'
 
组：assets do 
 gem'sass-rails' ，'〜> 3.1.0'
 gem'coffee-rails'，'〜> 3.1.0'
 gem'uglifier'
 end 
 
 gem'jquery-rails'
 
 gem'capistrano'
 
 gemrdoc，〜> 3.6.1
 
组：test do 
＃漂亮的打印测试输出
 gem'turn'，：require =>假
结束
  

---

其他信息

此时，为了调用交付方式，我使用以下代码：

  :: Pages :: Mailer.delay.contact_us（@user）＃它不工作，不发送电子邮件
  

另一方面，如果我使用以下代码：

 ＃注意：在开始时没有'::'
 Pages :: Mailer.delay.contact_us（@user）＃它不起作用并引发'NameError' （如下所述）
  

我收到此错误：

  NameError（未初始化的常量ActionController :: Caching :: Pages :: Mailer）
  

如果我使用不延迟版本，也会发生这种情况：

  :: Pages :: Mailer。 contact_us（@user）.deliver＃它的作品和SENDS电子邮件！ 
页面:: Mailer.contact_us（@user）.deliver＃它不起作用并提高'NameError'
  

解决方案

我写了一篇关于它的文章。

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

`last_error` = '{Job failed to load: uninitialized constant Syck::Syck. Handler: \"--- !ruby/struct:Delayed::PerformableMailer ...

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.

I read others related problem posts but I still cannot make that to work... how can I solve the problem?

P.S.: It seems that before upgrading to Rails 3.1 it worked.

---

UPDATE for @Shaun

Now my 'boot.rb' file is

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 => e
  STDERR.puts e.message
  STDERR.puts "Try running `bundle install`."
  exit!
end if File.exist?(gemfile)

After requiring yaml I get this error (note: Syck::Syck::BadAlias is "a new"\"different from the previous" error):

{Job failed to load: uninitialized constant Syck::Syck::BadAlias. Handler: \"--- !ruby/struct:Delayed::PerformableMailer ...

My 'database.yml' file is:

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

---

UPDATE for @KensoDev

My 'Gemfile' file is:

source 'http://rubygems.org'

gem 'rails', '3.1.0'
gem 'rake'

gem 'mysql2'
gem 'paperclip',       '~> 2.3'
gem 'will_paginate',   '~> 3.0.pre2'
gem 'delayed_job'
gem 'memcache-client', '1.8.5'

group :assets do
  gem 'sass-rails',   '~> 3.1.0'
  gem 'coffee-rails', '~> 3.1.0'
  gem 'uglifier'
end

gem 'jquery-rails'

gem 'capistrano'

gem "rdoc", "~> 3.6.1"

group :test do
  # Pretty printed test output
  gem 'turn', :require => false
end

---

ADDITIONAL INFORMATION

At this time, in order to call the delivering method, I use the following code:

::Pages::Mailer.delay.contact_us(@user)   # It doesn't work and doesn't send the e-mail

On the other hand, if I use the following 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)

I get this error:

NameError (uninitialized constant ActionController::Caching::Pages::Mailer)

The same happens if I use the "not delayed" version:

::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'

解决方案

I wrote a post about it.

http://www.kensodev.com/2011/08/16/uninitialized-constant-sycksyck-nameerror/

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