We have suddel;y started getting the following errors on one of our websites...

Assigning the return value of new by reference is deprecated in /public_html/modules/mod_virtuemart_flexible_dropdown_cart/mod_virtuemart_flexible_dropdown_cart.php on line 86

Deprecated: Assigning the return value of new by reference is deprecated in /public_html/modules/mod_virtuemart_flexible_dropdown_cart/mod_virtuemart_flexible_dropdown_cart.php on line 89

Certainly seems to be an issue with your extension, any ideas what is causing this ????

Running on latest version of Joomla 1.5 (client doesnt want to update to 2.5 due to all custom work so we secured 1.5)

Hi,

It has to do with PHP5.3

The fix is extremely easy.
Open this PHP file:
ROOT/modules/mod_virtuemart_flexible_dropdown_cart/mod_virtuemart_flexible_dropdown_cart.php

And look at the 86th:
Find this line:
change it with this:
then look at the 89th line,
find this line:
and change it with this:

the problem will be gone