わかりました、これは非常に奇妙です。データベースの移行を行おうとしていますが、突然、次のエラーが発生します。
[C:\source\fe]: rake db:migrate --trace (C:/source/fe) ** db:migrate を呼び出します (first_time) ** セットアップを呼び出す (first_time) ** gems:install を呼び出す (first_time) ** gems:set_gem_status (first_time) を呼び出す ** gems:set_gem_status を実行 ** gems:install の実行 レーキが中止されました! rake をアクティブ化できません (> 0.0.0)。既に rake-0.8.3 をアクティブ化しています] c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:139:in `アクティベート' c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:155:in `アクティベート' c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:154:in `each' c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:154:in `アクティベート' c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:49:in `gem' C:/source/fe/config/../vendor/rails/railties/lib/rails/gem_dependency.rb:36:in `add_load_paths' C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:245:`add_gem_load_paths' で C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:245:「それぞれ」に C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:245:`add_gem_load_paths' で C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:97:in `send' C:/source/fe/config/../vendor/rails/railties/lib/initializer.rb:97:in `run' C:/source/fe/config/gems.rb:45: in `init_dependencies' C:/source/fe/lib/tasks/overridegems.rake:15 c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `execute' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:「それぞれ」に c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `execute' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:in `invoke_with_call_chain' c:/ruby/lib/ruby/1.8/monitor.rb:242:in `同期' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588: in `invoke_prerequisites' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585: in `invoke_prerequisites' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in `invoke_with_call_chain' c:/ruby/lib/ruby/1.8/monitor.rb:242:in `同期' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588: in `invoke_prerequisites' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585: in `invoke_prerequisites' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in `invoke_with_call_chain' c:/ruby/lib/ruby/1.8/monitor.rb:242:in `同期' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564: in `invoke' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2019:in `invoke_task' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:`トップレベル' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:「それぞれ」に c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:`トップレベル' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036: in `standard_exception_handling' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1991:`トップレベル' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1970: in `run' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036: in `standard_exception_handling' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1967: in `run' c:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:31 c:/ruby/bin/rake:19: in `load' c:/ルビー/ビン/レーキ:19 [C:\source\fe]:
助言がありますか?rakeのアンインストールと再インストール、およびレールの更新を試みました。
参考までに、Gem 1.1.1 を使用しています。
また、gem update rails や gem update rake なども試しました。