Dear All,
Am using WordPress MU 2.9.1 , i too got the same issue.
i fixed the issue. to fix the issue pls do the below steps.
1. Pls open the wp-ecommerce/wpsc-includes/ajax.functions.php
2. go to line number 468, you can see the below php code.
if (get_option('do_not_use_shipping') == 0 && ($wpsc_cart->selected_shipping_method == null || $wpsc_cart->selected_shipping_option == null)) {
$_SESSION['wpsc_checkout_misc_error_messages'][] = TXT_WPSC_PLEASEASELECTSHIPPINGMETHOD;
$is_valid = false;
}
3. Pls commend the three lines.
if we do the above 3 steps, it will work fine.
i hope it will help to everyone.
Regards
Karthikeyan R