Ubuntu Karmic、Ruby、Railsを新規インストールしました。動作中の（本番）アプリケーションをチェックアウトします。データベースを作成し、rakeタスクを実行しました。イェンス・クラマーのacts_as_ferretがその1つである必要な宝石がすべて揃っていることを確認しました。
すべてが正しくインストールされているようです。宝石はAFFを含むenvironment.rbにリストされています。
rakeを実行すると、次のエラーが発生します。
ロードするそのようなファイルはありません--フェレット /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require ' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/jkraemer-acts_as_ferret-0.4.4/lib/acts_as_ferret.rb:25 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require ' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/gem_dependency.rb:208:in `load ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:307:in `load_gems ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:307:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:307:in `load_gems ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:164:in `process ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:113:in `send ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:113:in `run ' /home/pp/ruby-dev/production-app/config/environment.rb:18 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require ' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/tasks/misc.rake:4 /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain ' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain ' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain ' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31 / usr / local / bin / rake：19：in `load ' / usr / local / bin / rake：19 ロードするそのようなファイルはありません--フェレット /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require ' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/jkraemer-acts_as_ferret-0.4.4/lib/acts_as_ferret.rb:25 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require ' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/gem_dependency.rb:208:in `load ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:307:in `load_gems ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:307:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:307:in `load_gems ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:169:in `process ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:113:in `send ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/initializer.rb:113:in `run ' /home/pp/ruby-dev/production-app/config/environment.rb:18 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require ' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in ' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require ' /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/tasks/misc.rake:4 /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain ' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain ' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain ' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run ' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31 / usr / local / bin / rake：19：in `load ' / usr / local / bin / rake：19 これらの必要な宝石がありません： jkraemer-acts_as_ferret〜> 0.4.4 あなたが実行している： / usr / local / bin/rubyにあるruby1.8.7.160 rubygems 1.3.5（/home/pp/.gem/ruby/1.8、/usr/local/lib/ruby/gems/1.8） `rake gems：install`を実行して、不足しているgemをインストールします。/usr/local/lib/ruby/gems/1.8/gems/jkraemer-acts_as_ferret-0.4.4/lib/acts_as_ferret.rb:25
何が起こっているのか分かりませんか？