Ruby on rails 3 错误--：未初始化常量空气制动（NameError）

我正在从事rails 3.2.8项目，我刚刚安装了airbrake gem以跟踪错误，在开发过程中我执行了airbrake安装步骤，然后在使用capistrano进行部署时，我在unicorn生产日志中发现以下错误：

E, [2012-10-16T03:02:51.588084 #3645] ERROR -- : reaped #<Process::Status: pid 3846 exit 1> worker=3
I, [2012-10-16T03:02:51.588434 #3645]  INFO -- : worker=3 spawning...
I, [2012-10-16T03:02:51.708539 #3858]  INFO -- : worker=3 spawned pid=3858
I, [2012-10-16T03:02:51.708986 #3858]  INFO -- : Refreshing Gem list
E, [2012-10-16T03:02:52.793217 #3849] ERROR -- : uninitialized constant Airbrake (NameError)
/home/ubuntu/apps/nimrod/releases/20121011033552/config/initializers/airbrake.rb:1:in `<top (required)>'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:588:in `block (2 levels) in <class:Engine>'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:587:in `each'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:587:in `block in <class:Engine>'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `instance_exec'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `run'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:55:in `block in run_initializers'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `each'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `run_initializers'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application.rb:136:in `initialize!'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/railtie/configurable.rb:30:in `method_missing'
/home/ubuntu/apps/nimrod/releases/20121011033552/config/environment.rb:5:in `<top (required)>'
config.ru:4:in `require'
config.ru:4:in `block in <main>'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize'
config.ru:1:in `new'
config.ru:1:in `<main>'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn.rb:44:in `eval'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn.rb:44:in `block in builder'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:696:in `call'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:696:in `build_app!'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:569:in `init_worker_process'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:589:in `worker_loop'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:487:in `spawn_missing_workers'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:498:in `maintain_worker_count'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:272:in `join'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/bin/unicorn:121:in `<top (required)>'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/bin/unicorn:19:in `load'
/home/ubuntu/apps/nimrod/shared/bundle/ruby/1.9.1/bin/unicorn:19:in `<main>'

还试图阻止nginx，unicorn，然后重新启动它们，但没有成功

---

我希望有人能帮我解决这个问题。

更新包后，我遇到了类似的错误

似乎您必须在airbrake初始值设定项（config/initializers/airbrake.rb或config/initializers/errbit.rb）中要求rake_处理程序：

---

类似于上面的knagode。我需要添加rake处理程序

require 'airbrake/rake_handler'

我还需要停止并再次启动服务器

cap <env> deploy:stop
cap <env> deploy:start

cap部署：停止
cap部署：开始

重启功能似乎并没有将其选中

我的堆栈：

• Nginx
• 独角兽
• 轨道4
• 西德基
• 雷迪斯
• 博士后

---

对于我来说，以这种方式重新启动服务器有助于：

cap <env> deploy:stop
cap <env> deploy:start

cap部署：停止
cap部署：开始

您找到解决方案了吗？我只是遇到了同样的问题，我的设置看起来几乎相同。不是真的，我在其他VPS实例中重新部署了应用程序，它只是工作了。。。我想这是Unicorn重启过程的问题，它没有正确加载依赖项，但还没有最终的解决方案。

cap <env> deploy:stop
cap <env> deploy:start

cap <env> deploy:stop
cap <env> deploy:start