_Imported from Lighthouse._ Original ticket at: http://rails.lighthouseapp.com/projects/8994/tickets/5616 Created by **Adam Meehan** - 2011-01-04 16:24:39 UTC ActiveResource has not been updated to support the current ActiveModel errors serialization format. This patch supports both the new and old formats. It also supports what I hope will be the final format from this patch https://rails.lighthouseapp.com/projects/8994/tickets/5615-support-multiple-errors-per-attribute-in-activemodel-errors-json-serialization