包含工作gem会导致服务器错误

Question

我是rails的新手，所以我不知道如何诊断这个问题。我正在尝试使用workling来执行一些后台任务，但是我遇到了一个问题。当我在Gemfile中包含工作gem时，然后运行"bundle install“。当运行"rails s“时，我得到了以下错误。Googleing这个错误确实提到了更新gem，但是我今天早上使用rvm安装了ruby和gem，所以我怀疑这就是问题所在。

Gemfile：

gem 'workling', '~> 0.4.9.9'

错误：

$ rails s
/home/usr1/.rvm/gems/ruby-1.9.3-p429/gems/workling-0.4.9.9/lib/workling.rb:16:in `<class:Hash>': uninitialized constant ActiveSupport::CoreExtensions (NameError)
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429/gems/workling-0.4.9.9/lib/workling.rb:15:in `<top (required)>'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429@global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /home/usr1/rock/config/application.rb:7:in `<top (required)>'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands.rb:53:in `require'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands.rb:53:in `block in <top (required)>'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap'
    from /home/usr1/.rvm/gems/ruby-1.9.3-p429/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

Answer 1

我做了一些谷歌搜索，并决定使用另一个宝石。你可以看到帮助我here的答案。