Index: filefield.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/filefield/filefield.module,v
retrieving revision 1.212
diff -u -r1.212 filefield.module
--- filefield.module	24 Apr 2010 04:48:19 -0000	1.212
+++ filefield.module	28 Apr 2010 22:22:55 -0000
@@ -292,8 +292,12 @@
  * Implementation of hook_widget().
  */
 function filefield_widget(&$form, &$form_state, $field, $items, $delta = 0) {
+  if (module_exists('devel_themer') && (user_access('access devel theme information') || user_access('access devel information'))) {
+    drupal_set_message(t('Files may not be uploaded while the Theme Developer tool is enabled. It is highly recommended to <a href="!url">disable this module</a> unless it is actively being used.', array('!url' => url('admin/build/modules'))), 'error');
+  }
+
   // CCK doesn't give a validate callback at the field level...
-  // and FAPI's #require is naieve to complex structures...
+  // and FAPI's #require is naive to complex structures...
   // we validate at the field level ourselves.
   if (empty($form['#validate']) || !in_array('filefield_node_form_validate', $form['#validate'])) {
     $form['#validate'][] = 'filefield_node_form_validate';