好的，所以我将一个非常基本的应用程序部署到 Heroku。我已经按照教程进行了这封信。关于这个部署的一切都是教科书，但是当我在 Heroku 上打开该站点时，我收到令人沮丧的模糊消息“我们很抱歉，但出了点问题。”
当我做“heroku ps”时，它说：
Process State Command
------- ---------- ------------------------------------
web.1 up for 13m bundle exec rails server thin -p $..
当我运行“heroku 日志”时，我会收到通常的弃用消息，然后是下面的文本。但我在这些日志中没有看到任何会导致应用程序崩溃的危险信号。我错过了什么吗？
2012-06-24T12:50:50+00:00 heroku[slugc]: Slug compilation started
2012-06-24T12:51:25+00:00 heroku[api]: Release v9 created by bd@bendowney.net
2012-06-24T12:51:25+00:00 heroku[api]: Deploy ff89ee6 by bd@bendowney.net
2012-06-24T12:51:25+00:00 heroku[web.1]: State changed from up to bouncing
2012-06-24T12:51:25+00:00 heroku[web.1]: State changed from bouncing to created
2012-06-24T12:51:25+00:00 heroku[web.1]: State changed from created to starting
2012-06-24T12:51:25+00:00 heroku[slugc]: Slug compilation finished
2012-06-24T12:51:27+00:00 heroku[web.1]: Starting process with command `bundle exec rails server thin -p 37816 -e production`
2012-06-24T12:51:27+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2012-06-24T12:51:28+00:00 app[web.1]: Exiting
2012-06-24T12:51:29+00:00 heroku[web.1]: Process exited with status 0
2012-06-24T12:51:34+00:00 app[web.1]: => Booting Thin
2012-06-24T12:51:34+00:00 app[web.1]: => Rails 3.2.5 application starting in production on http://0.0.0.0:37816
2012-06-24T12:51:34+00:00 app[web.1]: => Ctrl-C to shutdown server
2012-06-24T12:51:34+00:00 app[web.1]: Connecting to database specified by DATABASE_URL
2012-06-24T12:51:34+00:00 app[web.1]: => Call with -d to detach
2012-06-24T12:51:34+00:00 app[web.1]: >> Thin web server (v1.3.1 codename Triple Espresso)
2012-06-24T12:51:34+00:00 app[web.1]: >> Maximum connections set to 1024
2012-06-24T12:51:34+00:00 app[web.1]: >> Listening on 0.0.0.0:37816, CTRL+C to stop
2012-06-24T12:51:35+00:00 heroku[web.1]: State changed from starting to up