私はここにいるこの紳士と同様の問題を抱えています。
rake タスクを介してキュウリ機能を実行しようとしています。そして、タイトルに指定されたエラーを拾ってきました。
これが完全なバックトレースです。そして私のルビーバージョン。(rails version コマンドを実行しようとすると、「コマンドが見つかりません」というメッセージが表示されました。
$ rake features:all --trace
** Invoke features:all (first_time)
** Invoke features:watir_webdriver (first_time)
** Execute features:watir_webdriver
c:/Ruby193/bin/ruby -S bundle exec cucumber --profile watir
Using the watir profile...
No such file or directory - /dev/null (Errno::ENOENT)
c:/Ruby193/lib/ruby/1.9.1/webrick/log.rb:34:in `initialize'
c:/Ruby193/lib/ruby/1.9.1/webrick/log.rb:34:in `open'
c:/Ruby193/lib/ruby/1.9.1/webrick/log.rb:34:in `initialize'
c:/Ruby193/lib/ruby/1.9.1/webrick/log.rb:124:in `initialize'
c:/code/page-object/features/sample-app/sample_app.rb:12:in `new'
c:/code/page-object/features/sample-app/sample_app.rb:12:in `start'
c:/code/page-object/features/support/ajax_text_environment.rb:6:in `block in run'
rake aborted!
Command failed with status (1): [c:/Ruby193/bin/ruby -S bundle exec cucumbe...]
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/file_utils.rb:53:in `block in create_shell_runner'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/file_utils.rb:45:in `call'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/file_utils.rb:45:in `sh'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/file_utils_ext.rb:39:in `sh'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/cucumber-1.1.9/lib/cucumber/rake/task.rb:104:in `run'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/cucumber-1.1.9/lib/cucumber/rake/task.rb:193:in `block in define_task'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `block in execute'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `block in invoke_with_call_chain'
c:/Ruby193/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:176:in `block in invoke_prerequisites'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `each'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `invoke_prerequisites'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:157:in `block in invoke_with_call_chain'
c:/Ruby193/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block (2 levels) in top_level'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `block in top_level'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `block in run'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
c:/Ruby193/lib/ruby/gems/1.9.1/gems/rake-0.9.2.2/bin/rake:33:in `<top (required)>'
c:/Ruby193/bin/rake:19:in `load'
c:/Ruby193/bin/rake:19:in `<main>'
Tasks: TOP => features:all => features:watir_webdriver
そしてルビー版
ruby -v
ruby 1.9.3p0 (2011-10-30) [i386-mingw32]
どんな助けでも無限に感謝します。ありがとう。