在 EY AppCloud 中，即使您在开发环境中运行，它们也会运行 bundler -- 无需开发和测试。我的 Gemfile 包含这个
group :test, :development do
gem 'ruby-debug19', :require => 'ruby-debug'
end
当我部署我得到这个错误：
Successfully installed engineyard-serverside-1.4.2
1 gem installed
~> Deploying revision a01f92c migrating to new FactoryGirl
~> Pushing code to all servers
~> Starting full deploy
~> Copying to /data/eg/releases/20110821184344
~> Ensuring proper ownership
~> Gemfile detected, bundling gems
~> Symlinking configs
ln: creating symbolic link `/data/eg/releases/20110821184344/config/database.yml': File exists
~> Migrating: cd /data/eg/releases/20110821184344 && PATH=/data/eg/releases/20110821184344/ey_bundler_binstubs:$PATH RAILS_ENV=development RACK_ENV=development MERB_ENV=development rake db:migrate --trace
rake aborted!
no such file to load -- ruby-debug
/usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in `require'
/usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
/usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:in `each'
/usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/runtime.rb:66:in `block in require'
/usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:in `each'
/usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/runtime.rb:55:in `require'
/usr/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler.rb:120:in `require'
/data/eg/releases/20110821184344/config/application.rb:7:in `<top (required)>'
/data/eg/releases/20110821184344/Rakefile:5:in `require'
/data/eg/releases/20110821184344/Rakefile:5:in `<top (required)>'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load_rakefile'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/application.rb:495:in `raw_load_rakefile'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/application.rb:78:in `block in load_rakefile'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/application.rb:77:in `load_rakefile'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/application.rb:61:in `block in run'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/application.rb:129:in `standard_exception_handling'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/application.rb:59:in `run'
/data/eg/shared/bundled_gems/ruby/1.9.1/gems/rake-0.9.2/bin/rake:32:in `<top (required)>'
/data/eg/releases/20110821184344/ey_bundler_binstubs/rake:16:in `load'
/data/eg/releases/20110821184344/ey_bundler_binstubs/rake:16:in `<main>'
~> [Attention] Maintenance page still up, consider the following before removing:
* any deploy hooks ran, be careful if they were destructive
* any migrations ran, be careful if they were destructive
* your old code is still symlinked as current
Failed deployment recorded in AppCloud
Deploy failed
如果我在 Gemfile 中注释掉 gem 'ruby-debug19' 行，它就可以工作。但无论如何都应该忽略这一点，因为如上所述，AppCloud 忽略了测试、开发环境 gem。它在这两种情况下都可以在本地工作。谁能想到可能导致这种情况的原因？