遇到异常：＃ <RuntimeError: Application has been already initialized.> 回溯：

Question

我正在通过Ruby on Rails教程工作。 在第5章中，我遇到了另一个我无法弄清楚的道路，也找不到解决办法。

首先，我的主页已消失，我不知道为什么。 也就是说，出于某种原因，对它的访问已经消失。

当我进行测试时。 我收到以下回复：

遇到异常：RuntimeError：应用程序已初始化。 回溯：

有人可以帮忙吗？

---

这是回溯（有一些有用的格式以便于查看）：

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/railties-3.2.8/lib/rails/application.rb:135:in `initialize!'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/railties-3.2.8/lib/rails/railtie/configurable.rb:30:in `method_missing'

/Users/tomgalpin/rails_projects/sample_app/config/environment.rb:5:in `<top (required)>'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `block in require'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:236:in `load_dependency'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'

/Users/tomgalpin/rails_projects/sample_app/spec/spec_helper.rb:3:in `<top (required)>'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:245:in `load'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:245:in `block in load'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:236:in `load_dependency'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:245:in `load'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/spork-0.9.2/lib/spork/run_strategy/forking.rb:11:in `block in run'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/spork-0.9.2/lib/spork/forker.rb:21:in `block in initialize'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/spork-0.9.2/lib/spork/forker.rb:18:in `fork'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/spork-0.9.2/lib/spork/forker.rb:18:in `initialize'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/spork-0.9.2/lib/spork/run_strategy/forking.rb:9:in `new'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/spork-0.9.2/lib/spork/run_strategy/forking.rb:9:in `run'

/Users/tomgalpin/.rvm/gems/ruby-1.9.3-p194@rails3tutorial2ndEd/gems/spork-0.9.2/lib/spork/server.rb:48:in `run'

/Users/tomgalpin/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/drb/drb.rb:1548:in `perform_without_block'

/Users/tomgalpin/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/drb/drb.rb:1508:in `perform'

/Users/tomgalpin/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/drb/drb.rb:1586:in `block (2 levels) in main_loop'

/Users/tomgalpin/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/drb/drb.rb:1582:in `loop'

/Users/tomgalpin/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/drb/drb.rb:1582:in `block in main_loop'

Answer 1

这解决了我的问题：

bundle exec spork --bootstrap