Ruby on rails 无法加载这样的文件--rufus调度程序（LoadError）

虽然我不想排除我可能遗漏了一些非常愚蠢的东西，但我确实尝试阅读了关于这个主题的所有内容，所以我的问题是：

我正在尝试在我的redmine（2.6）安装中运行rufus调度程序，如下所述：

主机系统为CentOS 7 x64+Plesk 12

gem列表

显示

rufus调度程序（3.0.9）

重新启动redmine时，我得到以下错误日志：

cannot load such file -- rufus-scheduler (LoadError)
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:251:in `require'
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:251:in `block in require'
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:236:in `load_dependency'
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:251:in `require'
  /var/www/vhosts/klwr.de/redmine.klwr.de/redmine-2.6.1/config/initializers/emailhandler.rb:3:in `<top (required)>'
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:245:in `load'
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:245:in `block in load'
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:236:in `load_dependency'
  /usr/local/share/gems/gems/activesupport-3.2.21/lib/active_support/dependencies.rb:245:in `load'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/engine.rb:593:in `block (2 levels) in <class:Engine>'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/engine.rb:592:in `each'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/engine.rb:592:in `block in <class:Engine>'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/initializable.rb:30:in `instance_exec'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/initializable.rb:30:in `run'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/initializable.rb:55:in `block in run_initializers'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/initializable.rb:54:in `each'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/initializable.rb:54:in `run_initializers'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/application.rb:136:in `initialize!'
  /usr/local/share/gems/gems/railties-3.2.21/lib/rails/railtie/configurable.rb:30:in `method_missing'
  /var/www/vhosts/klwr.de/redmine.klwr.de/redmine-2.6.1/config/environment.rb:14:in `<top (required)>'
  config.ru:3:in `require'
  config.ru:3:in `block in <main>'
  /usr/local/share/gems/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
  /usr/local/share/gems/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
  config.ru:1:in `new'
  config.ru:1:in `<main>'
  /usr/local/share/gems/gems/passenger-4.0.59/helper-scripts/rack-loader.rb:108:in `eval'
  /usr/local/share/gems/gems/passenger-4.0.59/helper-scripts/rack-loader.rb:108:in `load_app'
  /usr/local/share/gems/gems/passenger-4.0.59/helper-scripts/rack-loader.rb:127:in `<module:App>'
  /usr/local/share/gems/gems/passenger-4.0.59/helper-scripts/rack-loader.rb:27:in `<module:PhusionPassenger>'
  /usr/local/share/gems/gems/passenger-4.0.59/helper-scripts/rack-loader.rb:26:in `<main>'

但是，应用这些选项的任何组合都只会更改错误日志，从而使错误不会发生在机架加载器中，而是发生在机架预载器中

显示redmine的包内容不会显示rufus调度程序。这可能是原因吗？（如果是，这应该在一些关于redmine的文档中提及）

以下是config/initializers/emailhandler.rb文件的完整内容：

require 'rubygems'
require 'rake'
require 'rufus-scheduler'

load File.join(Rails.root, 'Rakefile')

ENV['host']='xxx'
ENV['port']='25'
ENV['username']='xxx'
ENV['password']='xxx'
ENV['project']='xxx'
ENV['unknown_user']='accept'
ENV['no_permission_check']='1'

scheduler = Rufus::Scheduler.new
# Check emails every 1 mins
scheduler.in '1m' do
  task = Rake.application['redmine:email:receive_imap']
  task.reenable
  task.invoke
end

---

感谢您花时间阅读此+以获取任何提示。祝你度过愉快的一天。

奇怪的是，作者建议直接安装gem而不使用

bundler

我知道当Redmine启动时，它只能看到“捆绑”的宝石。这意味着我建议您添加一行

gem 'rufus-scheduler' 

---

要安装Gemfile，请运行

bundle install

并尝试再次启动Redmine。

奇怪的是，作者建议直接安装gem而不使用

bundler

。我知道当Redmine启动时，它只能看到“捆绑”的宝石。这意味着我建议您在

gem'rufus scheduler'

中添加一行

gem'rufus scheduler'

，运行

bundle install

，然后再次尝试启动Redmine。@gotva请将其粘贴为答案。它可以工作：）谢谢，这为我解决了问题echo“gem rufus scheduler”>>Gemfile

gem 'rufus-scheduler'