独角兽在生产中找不到宝石

Question

我刚刚在我的rails应用程序上安装了一个新的gem。在开发机器上一切都很好。

一旦我将应用程序部署到我的生产服务器上，我就会在我的Uninitialized constant中获得一个unicorn.log，并且应用程序将不会运行。

我可以使用rails s 服务器运行应用程序，所以文件是100%在那里。--我假设这是独角兽问题。

对如何调试这个有什么想法吗？

编辑:添加堆栈跟踪

E, [2013-05-19T09:11:56.596020 #14042] ERROR -- : uninitialized constant Rabl (NameError)
/home/deployer/apps/papaya/releases/20130519131101/config/initializers/rabl_init.rb:1:in `<top (required)>'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:588:in `block (2 levels) in <class:Engine>'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:587:in `each'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:587:in `block in <class:Engine>'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:30:in `instance_exec'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:30:in `run'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:55:in `block in run_initializers'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:54:in `each'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/initializable.rb:54:in `run_initializers'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/application.rb:136:in `initialize!'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/railtie/configurable.rb:30:in `method_missing'
/home/deployer/apps/papaya/releases/20130519131101/config/environment.rb:5:in `<top (required)>'
config.ru:4:in `require'
config.ru:4:in `block in <main>'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/rack-1.4.4/lib/rack/builder.rb:51:in `instance_eval'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/rack-1.4.4/lib/rack/builder.rb:51:in `initialize'
config.ru:1:in `new'
config.ru:1:in `<main>'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn.rb:44:in `eval'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn.rb:44:in `block in builder'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn/http_server.rb:718:in `call'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn/http_server.rb:718:in `build_app!'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn/http_server.rb:591:in `init_worker_process'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn/http_server.rb:611:in `worker_loop'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn/http_server.rb:500:in `spawn_missing_workers'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn/http_server.rb:511:in `maintain_worker_count'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/lib/unicorn/http_server.rb:277:in `join'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/gems/unicorn-4.5.0/bin/unicorn:121:in `<top (required)>'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `load'
/home/deployer/apps/papaya/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `<main>'

Answer 1

你在Gemfile中添加宝石了吗。另外，您需要在对bundle install进行更改之后执行Gemfile。

Answer 2

您可以将其添加到deploy.rb文件中。

before 'deploy', 'bundleinstall'  # update RVM

task :bundleinstall do
  run "cd /home/#{user}/#{application}/#{fetch :app_env}/current && bundle install", :shell => fetch(:rvm_shell)
end