无法在Rails控制台中加载Ruby EventMachine - 无需加载此类文件

时间:2010-11-12 02:35:37

标签: ruby-on-rails ruby ruby-on-rails-3 eventmachine

我无法在简单的测试程序中使用EventMachine。我正在运行Ruby 1.9.2(x86_64-darwin10.4.0)和Rails 3.0.1。 EventMachine已安装(通过gem install eventmachine),gem知道它:

gem list --local

*** LOCAL GEMS ***

abstract (1.0.0)
...
erubis (2.6.6)
eventmachine (0.12.10)
i18n (0.4.2)
...
tzinfo (0.3.23)

然而,当我启动rails控制台(通过rails console)并只需要eventmachine时,它会爆炸:


ruby-1.9.2-p0 > require 'rubygems'
 => nil 
ruby-1.9.2-p0 > require 'eventmachine'
LoadError: no such file to load -- eventmachine
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.1/lib/active_support/dependencies.rb:239:in 'require'
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.1/lib/active_support/dependencies.rb:239:in 'block in require'
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.1/lib/active_support/dependencies.rb:225:in 'block in load_dependency'
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.1/lib/active_support/dependencies.rb:591:in 'new_constants_in'
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.1/lib/active_support/dependencies.rb:225:in 'load_dependency'
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.1/lib/active_support/dependencies.rb:239:in 'require'
    from (irb):2
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.1/lib/rails/commands/console.rb:44:in 'start'
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.1/lib/rails/commands/console.rb:8:in 'start'
    from /Users/russ/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.1/lib/rails/commands.rb:23:in '<top (required)>'
    from script/rails:6:in 'require'
    from script/rails:6:in '<main>'

我尝试在需要EventMachine的类中运行方法时获得相同的结果。 EventMachine构建没有错误。我已经一遍又一遍地卸载了EventMachine和Ruby以及所有的宝石,但我无法完成这项工作。有人能指出我正确的方向吗?

-Russ

3 个答案:

答案 0 :(得分:7)

Rails 3默认使用Bundler,这意味着您需要在Gemfile中指定所有依赖项,如下所示:

gem "eventmachine"

(安装未通过bundle install安装的任何内容。)

Bundler处理依赖关系管理,这意味着您可以锁定您的gem版本,并避免冲突,但相反,这意味着它加载未在您的Gemfile中指定的任何内容。

这也意味着如果你想在比webrick更好的东西上运行你的开发网络服务器,你可能想要在你的gemfile中添加这样的东西

group :development do
  gem 'mongrel'
  gem 'ruby-debug'
end

答案 1 :(得分:0)

您是否尝试将其放入rails app的gemfile并进行捆绑安装?

答案 2 :(得分:0)

在Windows中删除Ruby x64。 重新安装Ruby x86。

查看者。 https://github.com/eventmachine/eventmachine/blob/master/ext/extconf.rb#L78-L90

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