Ruby on Rails：在 Ubuntu 9.0.4 中安装 gitorious 时出现问题

Question

我似乎无法安装 Gitorious。 我试图不安装 Ruby Enterprise Edition，但除此之外，我一直遵循 Ubunut 的说明（存在一些错误，但我已经解决了这些错误）。 我已经安装了许多缺少的软件包和 gem，但是现在当我尝试迁移数据库时我陷入了困境。 我收到以下错误：

rake 中止！

undefined method `[]' for nil:NilClass

Trace 看起来像这样：

/var/www/gitorious/config/environments/production.rb:39:in `load_environment'
/var/www/gitorious/config/../vendor/rails/railties/lib/initializer.rb:386:in `load_environment'
/var/www/gitorious/vendor/rails/activesupport/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'
/var/www/gitorious/config/../vendor/rails/railties/lib/initializer.rb:379:in `load_environment'
/var/www/gitorious/config/../vendor/rails/railties/lib/initializer.rb:137:in `process'
/var/www/gitorious/config/../vendor/rails/railties/lib/initializer.rb:113:in `send'
/var/www/gitorious/config/../vendor/rails/railties/lib/initializer.rb:113:in `run'
/var/www/gitorious/config/environment.rb:13
/usr/lib/ruby/1.8/rubygems/custom_require.rb:32:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:32:in `require'
/var/www/gitorious/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require'
/var/www/gitorious/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
/var/www/gitorious/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require'
/var/www/gitorious/vendor/rails/railties/lib/tasks/misc.rake:4
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'
/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain'
/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/var/lib/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
/var/lib/gems/1.8/gems/rake-0.8.7/bin/rake:31
/var/lib/gems/1.8/bin/rake:19:in `load'
/var/lib/gems/1.8/bin/rake:19

我的理解是我这是声称我缺少一些依赖项，但我已经检查了 /var/www/gitorious/config/environment.rb 中的依赖项已安装。

我还在 custom_require.rb 中放置了一个打印来打印路径变量，最后一个打印是“active_support/dependencies”。

有谁知道问题是什么或者我如何进一步调试这个问题？ 我可以以某种方式打印确切缺少的依赖项吗？ 是否可以在不安装整个 Ruby Enterprise 版本的情况下安装 gitorious？

Answer 1

我从 Gitorious 讨论组询问了这个问题，原因是默认的 gitorious.yml 文件仅具有测试环境的设置。 通过将这些设置复制到生产环境，我解决了这个问题。