Notice: Undefined index: view in C:\xampp\htdocs\vsl\components\com_content\views\article\view.html.php on line 156Notice: Undefined index: view in C:\xampp\htdocs\vsl\components\com_content\views\article\view.html.php on line 158

Notice: Undefined index: view in C:\xampp\htdocs\vsl\components\com_content\views\article\view.html.php on line 156Notice: Undefined index: view in C:\xampp\htdocs\vsl\components\com_content\views\article\view.html.php on line 158

I get this error when i click on a listing, but it still shows the listing. Any ideas?

from this code .... change to

if($menu && $menu->query['view'] != 'article')
{
switch ($menu->query['view'])

this...

if($menu && isset($menu->query['view']) && $menu->query['view'] != 'article')
after you replace this code ... then you get good answer.