无法使用gruff gem加载Rails应用程序

Question

我正在尝试加载一个使用Gruff gem的Ruby on Rails应用程序。我可以在irb中很好地加载Gruff，但每当我试图(通过ruby script/server)加载这个应用程序时，它就会崩溃。下面是完整的堆栈跟踪：

/opt/local/lib/ruby/vendor_ruby/1.8/rubygems/source_index.rb:303:in `search': undefined method `empty?' for :gruff:Symbol (NoMethodError)
    from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/source_index.rb:274:in `find_name'
    from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems.rb:259:in `activate'
    from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems.rb:67:in `gem'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/config/environment.rb:60
    from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:495:in `require'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:342:in `new_constants_in'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:495:in `require'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:147:in `rails'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:113:in `cloaker_'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:149:in `call'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:149:in `listener'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:99:in `cloaker_'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:50:in `call'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:50:in `initialize'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in `new'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in `run'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/command.rb:212:in `run'
    from /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:488:in `load'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:488:in `load'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:342:in `new_constants_in'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:488:in `load'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/railties/lib/commands/servers/mongrel.rb:60
    from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:495:in `require'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:342:in `new_constants_in'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/activesupport/lib/active_support/dependencies.rb:495:in `require'
    from /Users/mdippery/Projects/nees/ceespm/rails-server/vendor/rails/railties/lib/commands/server.rb:39
    from script/server:3:in `require'
    from script/server:3

我如何才能修复这个问题，使应用程序能够运行？

Answer 1

gem需要直接安装到您的rails应用目录中吗？

来自here

Rails插件

Gruff很容易与Rails一起使用。

gem安装gruff cd供应商/插件&& gem解包gruff

如果你只做过gem install gruff，这可能会解释为什么它不能在rails中工作，而能在irb中工作。