capistrano deploy：冷执行`deploy：migrate'失败

Question

这是输出：

* 2015-02-13 08:05:42 executing `deploy:migrate' * executing "cd /home/deploy/apps/deployer/releases/20150213023538 && bundle exec rake RAILS_ENV=production db:migrate" servers: ["123.123.123.123"] [123.123.123.123:8080] executing command ** [out :: 123.123.123.123:8080] rake aborted! ** [out :: 123.123.123.123:8080] ** [out :: 123.123.123.123:8080] LoadError: Please require this file from within a Capistrano recipe ** [out :: 123.123.123.123:8080]

我一直在尝试在不同的服务器上部署3天的rails应用程序，任何帮助都会非常受欢迎。