upgrade to rails3, but grip is broken

config/locales/devise.en.yml

@@ -1,4 +1,10 @@
 en:
+  errors:
+    messages:
+      not_found: "not found"
+      already_confirmed: "was already confirmed"
+      not_locked: "was not locked"
+
   devise:
     sessions:
       link: 'Sign in'

config/locales/en.yml

@@ -2,4 +2,4 @@
 # See http://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
 
 en:
-  hello: "Hello world"
+  hello: "Hello world"