是不是我 Mysql 没有配置好？

Push Status: OK
Staging Application 'shinapp': OK                                               
Starting Application 'shinapp': ..
Error: Application [shinapp] failed to start, logs information below.

====> /logs/migration.log <====

DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /var/vcap/data/dea/apps/shinapp-0-7986f16585999979003e6fcd41114cd5/app/Rakefile:7)
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config (first_time)
** Execute db:load_config
** Execute db:migrate
rake aborted!
undefined method `accept' for nil:NilClass