生产中的Rails控制台：NameError：未初始化的常量
我有一个rails应用程序（rails 5）。 在开发中，当我使用时，一切都有效
rails console 并输入一条指令，例如User.all ，它正在工作。
在生产中，我的应用程序工作完美，没有问题，没有错误，但当我使用rails console production并输入例如User.all我有一个错误：
NameError: uninitialized constant User from (irb):2 from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/console.rb:65:in `start' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/console_helper.rb:9:in `start' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:78:in `console' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.0.0.1/lib/rails/commands.rb:18:in `' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:293:in `require' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:293:in `block in require' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:259:in `load_dependency' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/dependencies.rb:293:in `require' from /home/alexandre/tcheen/bin/rails:9:in `' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/commands/rails.rb:6:in `load' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/commands/rails.rb:6:in `call' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/command_wrapper.rb:38:in `call' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:191:in `block in serve' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:in `fork' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:in `serve' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:131:in `block in run' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `loop' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `run' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/spring-1.7.2/lib/spring/application/boot.rb:19:in `' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require' from /home/alexandre/.rbenv/versions/2.3.1/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require' from -e:1:in `'
我的所有课程都有同样的问题，但我再说一遍，应用程序工作正常。 我在Mac OS上开发，应用程序在debian 8上运行。我的模型正确命名我validation。 谢谢
我遇到了这个问题，并意识到它发生在我对我的一个工作文件进行调整之后。 修复它的原因是重新启动弹簧加载器。 赶紧跑
spring stop
然后，下次运行rails console它应该正常加载。