title: Error with active Record translations
body: <p>I'm getting an error when <code>db:reset</code>. I've read several posts about this, but none works for me.</p>
  
  <p>The error says:</p>
  
  <p><code>translation missing: es.activerecord.errors.messages.record_invalid</code></p>
  
  <p>My <code>locales/es.yml</code> is:</p>
  
  <pre><code>es:
    activerecord:
      errors:
        messages:
          accepted: "must be accepted"
          blank: "can't be blank"
          confirmation: "doesn't match confirmation"
          empty: "can't be empty"
          equal_to: "must be equal to {{count}}"
          even: "must be even"
          exclusion: "is reserved"
          greater_than: "must be greater than {{count}}"
          greater_than_or_equal_to: "must be greater than or equal to {{count}}"
          inclusion: "is not included in the list"
          invalid: "is invalid"
          less_than: "must be less than {{count}}"
          less_than_or_equal_to: "must be less than or equal to {{count}}"
          not_a_number: "is not a number"
          odd: "must be odd"
          taken: "is already taken"
          too_long: "is too long (maximum is {{count}} characters)"
          too_short: "is too short (minimum is {{count}} characters)"
          wrong_length: "is the wrong length (should be {{count}} characters)"
  </code></pre>