莺的 jruby 问题中止

Question

我是 jruby 的初学者。我有一个 Ruby Rails 应用程序 - 我使用 rias 运行它。现在我想用 WAR 文件创建 war-warbler，但我得到了一个我无能为力的错误：

double loading C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activerecord-jdbc-adapter-1.3.21/lib/arjdbc/tasks/databases.rake please delete lib/tasks/jdbc.rake if present! warble aborted! NoMethodError: undefined method 'tail' for nil:NilClass Did you mean? taint rakefile:1:in rakefile:6:in C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:1:in C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:2:in rakefile:1:in rakefile:6:in C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:1:in C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:2:in rakefile:1:in rakefile:6:in`'

事实： Windows 7的 Jruby-9.1.5.0 莺 (2.0.4)

编辑：
如果我调用以下jruby -S warble --trace，我会得到以下跟踪：
无数次：
double loading C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activerecord-jdbc-adapter-1.3.21/lib/arjdbc/tasks/databases.rake please delete lib/tasks/jdbc.rake if present!

然后：

warble aborted! NoMethodError: undefined method 'tail' for nil:NilClass Did you mean? taint C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/rake-11.3.0/lib/rake/task_manager.rb:221:in 'in_namespace' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/rake-11.3.0/lib/rake/dsl_definition.rb:140:in 'namespace' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activerecord-4.2.7.1/lib/active_record/railties/databases.rake:3:in'<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activerecord-4.2.7.1/lib/active_record/railtie.rb:51:in 'block in Railtie' org/jruby/RubyBasicObject.java:1704:in 'instance_exec' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/railtie.rb:237:in 'block in run_tasks_blocks'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/railtie.rb:245:in 'each_registered_block' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/railtie.rb:237:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/application.rb:451:in 'block in run_tasks_blocks'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine/railties.rb:13:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/application.rb:451:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:453:in 'load_tasks' rakefile:1:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:61:in 'block in load_project_rakefile'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:58:in 'load_project_rakefile' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler.rb:26:in 'project_application' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits/rails.rb:27:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'block in before_configure'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/config.rb:215:in 'initialize' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/task.rb:48:in 'initialize' rakefile:6:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'block in run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/application.rb:452:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:453:in 'load_tasks' C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:1:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:61:in 'block in load_project_rakefile'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:58:in 'load_project_rakefile' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler.rb:26:in 'project_application' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits/rails.rb:27:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'block in before_configure'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/config.rb:215:in 'initialize' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/task.rb:48:in 'initialize' C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:2:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'block in run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/application.rb:452:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:453:in 'load_tasks' rakefile:1:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:61:in 'block in load_project_rakefile'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:58:in 'load_project_rakefile' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler.rb:26:in 'project_application' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits/rails.rb:27:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'block in before_configure'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/config.rb:215:in 'initialize' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/task.rb:48:in 'initialize' rakefile:6:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'block in run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/application.rb:452:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:453:in 'load_tasks' C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:1:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:61:in 'block in load_project_rakefile'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:58:in 'load_project_rakefile' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler.rb:26:in 'project_application' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits/rails.rb:27:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'block in before_configure'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/config.rb:215:in 'initialize' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/task.rb:48:in 'initialize C:/Hagen/leaman/lib/tasks/warbler/warbler.rake:2:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_supp ort/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'block in run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:658:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/application.rb:452:in 'run_tasks_blocks' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/railties-4.2.7.1/lib/rails/engine.rb:453:in 'load_tasks' rakefile:1:in '<main>'org/jruby/RubyKernel.java:974:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'block in load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in 'load_dependency' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:268:in 'load' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:61:in 'block in load_project_rakefile'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/application.rb:58:in 'load_project_rakefile' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler.rb:26:in 'project_application' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits/rails.rb:27:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'block in before_configure'org/jruby/RubyArray.java:1734:in 'each' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/traits.rb:29:in 'before_configure' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/config.rb:215:in 'initialize' C:/jruby-9.1.5.0/lib/ruby/gems/shared/gems/warbler-2.0.4/lib/warbler/task.rb:48:in 'initialize' rakefile:6:in '<main>'

Answer 1

谢谢大家。 我已经重新安装了 JRuby，然后它就可以工作了。