[Dup] Warning: Creating default object from empty value in shipping_estimator.php 107

I have warnings in my cache that say
"[21-Jan-2012 16:36:57] PHP Warning: Creating default object from empty value in C:\wamp\www\includes\modules\shipping_estimator.php on line 107"

Every time i access the checkoput page it puts an entry in the cache. Is there a way to prevent this because that fills up with a lot of entries real quick. ?

Thank you

Xampp 1.81, PHP 5.4.7

I got the warning for the previous section, when the user is not logged in.

I seem to have stopped the warning by adding this:

$country_info = $_SESSION['country_info'];
**require(DIR_WS_CLASSES . 'order.php');$order = new order;//steve for PHP warning
**
$order->delivery = array('postcode' => $zip_code,

but this really needs to be addressed by the devs, I'm not informed enough to say this is a fix.

Seeing this also Zen 1.5.1 & 1.5.2

PHP Version: 5.4.26 (Zend: 2.4.0)
Default file, no changes

for the record, this http://www.zen-cart.com/showthread.php?200601-UNDER-REVIEW-PHP-5-4-PHP-Warning-Creating-default-object-from-empty-value&p=1225896#post1225896 worked