Rails Mysql2::Error: 找不到文件？

Question

关于这是什么以及如何解决它的任何想法？

$ rake db:migrate
== 20150512132215 RenameNotificationSubscriptions: migrating ==================
-- rename_table(:notifications_subscriptions, :video_subscriptions)
rake aborted!
StandardError: An error has occurred, all later migrations canceled:

Mysql2::Error: Can't find file: './railsapp_development/notifications_subscriptions.frm' (errno: 2 - No such file or directory): RENAME TABLE `notifications_subscriptions` TO `video_subscriptions`/Users/mark/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.8/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in `query'

Answer 1

我的旧表名错误 notifications_subscriptions 应该是 notification_subscriptions。尽管如此，还是一个奇怪的错误。