drupal 7 使用Views Excel Export模块 报错 Notice: Undefined property: view::$feed_icon 有大用 有大大用

报这个警告 有补丁 

https://www.drupal.org/files/issues/views_export_xls-fix_icon_attachment_on_php5_5-2344865-5-D7.patch

diff --git a/views/views_export_xls_plugin_style_xls.inc b/views/views_export_xls_plugin_style_xls.inc
index 0ba6d60..cc9609f 100644
--- a/views/views_export_xls_plugin_style_xls.inc
+++ b/views/views_export_xls_plugin_style_xls.inc
@@ -40,6 +40,10 @@ class views_export_xls_plugin_style_xls extends views_plugin_style {
       'title' => 'Export to xls',
       );
     $image = theme('image', $variables);
+
+    if (!isset($this->view->feed_icon)) {
+      $this->view->feed_icon = '';
+    }
     $this->view->feed_icon .= l($image, $this->view->get_url(NULL, $path), $url_options);
   }