这是我第一次使用 Heroku，所以我真的不知道错误是什么意思。我基本上使用 rails 和 bootstrap 来创建一个站点（只有链接，没有动态特性）。
←[36m2013-04-17T21:47:59.413491+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:50:in `<top (required)>'
←[36m2013-04-17T21:47:59.413491+00:00 app[web.1]:←[0m from script/rails:6:in `require'
←[36m2013-04-17T21:47:59.413491+00:00 app[web.1]:←[0m from script/rails:6:in `<main>'
←[36m2013-04-17T21:47:59.413199+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands/server.rb:59:in `start'
←[36m2013-04-17T21:47:59.419753+00:00 app[web.1]:←[0m Exiting
←[36m2013-04-17T21:48:00.637162+00:00 heroku[web.1]:←[0m Process exited with status 1
←[36m2013-04-17T21:48:00.653135+00:00 heroku[web.1]:←[0m State changed from starting to crashed
←[36m2013-04-17T21:48:04.188831+00:00 heroku[web.1]:←[0m Error R12 (Exit timeout) -> At least one process failed to exit within 10 seconds of SIGTERM
←[36m2013-04-17T21:48:04.188831+00:00 heroku[web.1]:←[0m Stopping remaining processes with SIGKILL
←[36m2013-04-17T21:48:06.652384+00:00 heroku[web.1]:←[0m Process exited with status 137
←[33m2013-04-17T21:49:24.968073+00:00 heroku[router]:←[0m at=error code=H10 desc="App crashed" method=GET path=/ host=nameless-peak-6062.herokuapp.com fwd="142.151.192.92" dyno= connect= service= status=503 bytes=
←[33m2013-04-17T21:49:25.931067+00:00 heroku[router]:←[0m at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=nameless-peak-6062.herokuapp.com fwd="142.151.192.92" dyno= connect= service= status=503 bytes=
←[33m2013-04-17T21:49:26.628879+00:00 heroku[router]:←[0m at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=nameless-peak-6062.herokuapp.com fwd="142.151.192.92" dyno= connect= service= status=503 bytes=
←[33m2013-04-17T21:49:27.165454+00:00 heroku[router]:←[0m at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=nameless-peak-6062.herokuapp.com fwd="142.151.192.92" dyno= connect= service= status=503 bytes=
←[33m2013-04-17T21:49:27.135930+00:00 heroku[router]:←[0m at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=nameless-peak-6062.herokuapp.com fwd="142.151.192.92" dyno= connect= service= status=503 bytes=
←[33m2013-04-17T21:49:30.949503+00:00 heroku[router]:←[0m at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=nameless-peak-6062.herokuapp.com fwd="142.151.192.92" dyno= connect= service= status=503 bytes=
←[32m2013-04-17T21:56:36.018416+00:00 heroku[slugc]:←[0m Slug compilation started
←[35m2013-04-17T21:57:33.471063+00:00 heroku[api]:←[0m Release v10 created by john.yeung628@gmail.com
←[35m2013-04-17T21:57:33.549837+00:00 heroku[api]:←[0m Deploy bf28903 by john.yeung628@gmail.com
←[36m2013-04-17T21:57:33.644790+00:00 heroku[web.1]:←[0m State changed from crashed to starting
←[32m2013-04-17T21:57:34.367363+00:00 heroku[slugc]:←[0m Slug compilation finished
←[36m2013-04-17T21:57:35.689891+00:00 heroku[web.1]:←[0m Starting process with command `bundle exec rails server thin -p 16004 -e $RACK_ENV`
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler/thin.rb:1:in `require': cannot load such file -- thin (LoadError)
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler.rb:20:in `const_get'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:272:in `server'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands/server.rb:59:in `start'
←[36m2013-04-17T21:57:37.504825+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:50:in `tap'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler/thin.rb:1:in `<top (required)>'
←[36m2013-04-17T21:57:37.504825+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:50:in `<top (required)>'
←[36m2013-04-17T21:57:37.504825+00:00 app[web.1]:←[0m from script/rails:6:in `<main>'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler.rb:20:in `block in get'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler.rb:20:in `get'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:55:in `block in <top (required)>'
←[36m2013-04-17T21:57:37.504825+00:00 app[web.1]:←[0m from script/rails:6:in `require'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler.rb:20:in `each'
←[36m2013-04-17T21:57:37.504415+00:00 app[web.1]:←[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/handler.rb:20:in `inject'
←[36m2013-04-17T21:57:37.509475+00:00 app[web.1]:←[0m Exiting