Call to undefined method: shoppingcart->get_quantity()

[michaelstanford]

I'm having a bit of trouble with my cart. When attempting to add items to the cart, I get this error -

 

Fatal error: Call to undefined method: shoppingcart->get_quantity() in <path to site>\application_top.php on line 370

 

Where <path to site> is the direct path to the includes directory.

 

Line 370 of application_top.php is

 

$cart->add_cart($HTTP_GET_VARS['products_id'], $cart->get_quantity($HTTP_GET_VARS['products_id'])+1);

 

Could anyone provide a bit of help?

[michaelstanford]

I'm still having issues with this.