在 OS X 上升级到 ruby​​ 1.9.2 后，我的 rails 项目失败

Question

我已按照本教程将 ruby​​ 升级到 1.9.2、rubygems 1.5.0 并安装了最新的 rails 3.0.3：

http://hivelogic.com/articles/ruby-rails-mongrel-mysql-osx

但现在我现有的项目不再有效。如果我做一个“ruby script/about”，我会得到这个：

<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- /Users/sneigaard/work/rails/myproject/config/../vendor/rails/railties/lib/initializer (LoadError)
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:45:in `load_initializer'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:38:in `run'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:11:in `boot!'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:110:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from script/about:2:in `<main>'

如果我运行“mongrel_rails start”，我会收到此错误：

** Starting Mongrel listening at 0.0.0.0:3000
** Starting Rails with development environment...
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `gem_original_require': no such file to load -- /Users/sneigaard/work/rails/myproject/config/../vendor/rails/railties/lib/initializer (LoadError)
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `require'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:45:in `load_initializer'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:38:in `run'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:11:in `boot!'
    from /Users/sneigaard/work/rails/myproject/config/boot.rb:110
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `require'
    from /Users/sneigaard/work/rails/myproject/config/environment.rb:7
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `require'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:147:in `rails'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:113:in `cloaker_'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:149:in `call'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:149:in `listener'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:99:in `cloaker_'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:50:in `call'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/configurator.rb:50:in `initialize'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in `new'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:84:in `run'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/command.rb:212:in `run'
    from /Library/Ruby/Gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
    from /usr/bin/mongrel_rails:19:in `load'
    from /usr/bin/mongrel_rails:19

在脚本/服务器中我有这个：

#!/usr/bin/env ruby
require File.expand_path('../../config/boot', __FILE__)
require 'commands/server'

我已经搜索并搜索了网络，但我无法弄清楚，我的项目被卡住了:(请帮助我。

谢谢
索伦

Answer 1

它是rails server 会吐出同样的错误吗？您似乎在 rails 3 中使用 rails 2 命令。此外，您的所有 gem 是否都加载到 1.9.2 中？切换红宝石时必须重新加载所有内容。

Answer 2

你的 ruby​​ 配置有一些错误，如果你输入

which ruby
gem environment

和

ruby -v

都是相干的？

我会建议使用RVM 设置好的文档非常简单，对您的业务很有用。

您的项目似乎仍在 rails 2.3.* 而不是 3.0.* 中，在 rails 3 thear 不是脚本/服务器脚本文件。 为您的项目安装 rvm ruby​​ 1.9.2 和正确的 gem。

希望这会有所帮助。

Answer 3

我在将应用程序从 1.8.7 升级到 1.9.2 时遇到了这个问题。
在 Ruby 1.9.2 中，Kernel.require 不像 1.8 那样工作，而是他们似乎希望你使用 kernel.require_relative

请参阅此处了解适用于两种红宝石的解决方案

Ruby: require vs require_relative - best practice to workaround running in both Ruby <1.9.2 and >=1.9.2