在上次 Calabash 更新之后，我无法再运行测试了。我用：
- 葫芦-黄瓜-0.10.2
- run_loop-1.0.8
- 红宝石2.1.0
- Xcode 6.0.1
- 和 Xamarin Calabash 组件（Xamarin 测试云代理 10.1.1）
当我尝试运行测试时，我得到：
undefined method `[]' for nil:NilClass (NoMethodError)
/Users/user/.rvm/gems/ruby-2.1.0/gems/run_loop-1.0.8/lib/run_loop/sim_control.rb:688:in `enable_accessibility_in_sim_data_dir'
/Users/user/.rvm/gems/ruby-2.1.0/gems/run_loop-1.0.8/lib/run_loop/sim_control.rb:292:in `block in enable_accessibility_on_sims'
/Users/user/.rvm/gems/ruby-2.1.0/gems/run_loop-1.0.8/lib/run_loop/sim_control.rb:291:in `map'
/Users/user/.rvm/gems/ruby-2.1.0/gems/run_loop-1.0.8/lib/run_loop/sim_control.rb:291:in `enable_accessibility_on_sims'
/Users/user/.rvm/gems/ruby-2.1.0/gems/run_loop-1.0.8/lib/run_loop/core.rb:95:in `run_with_options'
/Users/user/.rvm/gems/ruby-2.1.0/gems/run_loop-1.0.8/lib/run_loop/core.rb:687:in `run'
/Users/user/.rvm/gems/ruby-2.1.0/gems/calabash-cucumber-0.10.2/lib/calabash-cucumber/launcher.rb:718:in `block in new_run_loop'
/Users/user/.rvm/gems/ruby-2.1.0/gems/calabash-cucumber-0.10.2/lib/calabash-cucumber/launcher.rb:716:in `times'
/Users/user/.rvm/gems/ruby-2.1.0/gems/calabash-cucumber-0.10.2/lib/calabash-cucumber/launcher.rb:716:in `new_run_loop'
/Users/user/.rvm/gems/ruby-2.1.0/gems/calabash-cucumber-0.10.2/lib/calabash-cucumber/launcher.rb:597:in `relaunch'
/Users/user/Projects/CalabashTest/features/support/01_launch.rb:27:in `Before'
在“ calabash-ios sim acc”或“ calabash-ios console”中，当我尝试运行时，start_test_server_in_background我遇到了同样的错误。任何帮助深表感谢。