RoR: rake db:schema:load RAILS_ENV=production error答案

【问题标题】：RoR: rake db:schema:load RAILS_ENV=production errorRoR: rake db:schema:load RAILS_ENV=production error
【发布时间】：2010-11-01 12:46:30
【问题描述】：

当我尝试在 Rails 中创建生产数据库时出现以下错误：

>rake db:schema:load RAILS_ENV=production --trace rake db:schema:load RAILS_ENV=production --trace （在 C:/Users/user/Documents/Aptana Studio/truping 中） ** 调用 db:schema:load (first_time) ** 调用环境（first_time） ** 执行环境耙中止！没有要加载的文件——应用程序 C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:155:in `require' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:262:in `require_or_load' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:221:in `depend_on' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:133:in `require_dependency' C:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:18:in `define_dispatcher_callbacks' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:182:in `call' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:182:in `evaluate_method' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:166:in `call' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:90:in `run' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:90:in `each' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:90:in `send' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:90:in `run' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/callbacks.rb:277:in `run_callbacks' C:/ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:559:in `send' C:/ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:559:in `prepare_dispatcher' C:/ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:173:in `process' C:/ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:112:in `send' C:/ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:112:in `run' C:/Users/rrevi/Documents/Aptana Studio/truping/config/environment.rb:13 C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in' C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require' C:/ruby/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/tasks/misc.rake:3 C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:617:in `call' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:617:in `execute' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:612:in `each' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:612:in `execute' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:578:in `invoke_with_call_chain' C:/ruby/lib/ruby/1.8/monitor.rb:238:in `同步' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:571:in `invoke_with_call_chain' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:588:in `invoke_prerequisites' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:585:in `each' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:585:in `invoke_prerequisites' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:577:in `invoke_with_call_chain' C:/ruby/lib/ruby/1.8/monitor.rb:238:in `同步' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:571:in `invoke_with_call_chain' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:564:in `invoke' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2027:in `invoke_task' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `each' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2005:in `top_level' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in `standard_exception_handling' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1999:in `top_level' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1977:in `run' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:2044:in `standard_exception_handling' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake.rb:1974:in `run' C:/ruby/lib/ruby/gems/1.8/gems/rake-0.8.4/bin/rake:31 C:/ruby/bin/rake:19:in `load' C:/ruby/bin/rake:19

有人可以帮忙吗？我错过了宝石吗？

【问题讨论】：

你的 environment.rb 中的第 13 行是什么？

标签： ruby-on-rails

【解决方案1】：

我认为您将 Rails 2.2 应用程序迁移到 Rails 2.3。我曾经在某个时候遇到过这个问题，但是当我将 application_controller.rb 的副本作为 application.rb 时它得到了解决。不确定真正的解决方案是什么，但它会让您的应用正常运行。

【讨论】：

我同意这是问题所在——你的 config/environments/production.rb 有没有可能在里面有不同的 RAILS_VERSION 声明？从错误来看，您似乎已经从 Rails 2.3 倒退到 Rails 2.2 - 您可能有一个 application_controller.rb，但系统需要 application.rb。

【解决方案2】：

我认为你错过了一颗宝石。你是如何安装 Rails 的？

另外，您是否已准备好有效的迁移？

【讨论】：

【解决方案3】：

拉吉，

问题是我将 Rails 2.3.2 应用程序迁移到 Rails 2.2.2 环境。我通过将应用程序项目的 Rails gem 更新到 Rails 2.3.2 来解决问题。

就像你说的，Rails 2.2.2 寻找 application.rb 而 Rails 2.3.2 寻找 application_controller.rb

谢谢

【讨论】：

【解决方案4】：

我的 ISP 只支持 2.2.2，所以我创建了一个指向 application.rb 的符号链接，它可以工作:)

【讨论】：