On 11/10/2017 at 10:25 AM, ABANGWEB said:Got the answer.
Go to file src\Adapter\Cart\CartPresenter.php
on line 299. paste code
$totalWeight = $cart->getTotalWeight();
And on line 435 paster code
'total_weight' => $totalWeight,
src\Adapter\Cart\CartPresenter.php is deprecated since 1.7.4.0