adding devise

config/environments/development.rb

@@ -38,8 +38,8 @@ Rails.application.configure do
 
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false
-
   config.action_mailer.perform_caching = false
+  config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
 
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log