undefined method `deliver_sent' for MailerFormError:Class
问题 I'm upgrading rais 2.3.2 project to rails 3 Error: undefined method `deliver_sent' for MailerFormError:Class Application Trace | Framework Trace | Full Trace app/controllers/leads_controller.rb:72:in `block in create' app/controllers/leads_controller.rb:56:in `create' MailerFormError is my model: class MailerFormError < ActionMailer::Base It's no method 'deliver_sent' in model and Actionmailer::Base too :( code with it in controller: @msg = {} @msg["errors"] = @lead.errors @msg["params"] =