El peso y el valor de envío de Fedex no se configuran al crear un pedido mediante programación

Estoy tratando de crear un pedido mediante programación utilizando el método de envío de FedEx. Otros métodos funcionan bien. Cuando configuro el FedEx obteniendo el error, por favor especifique el método de envío. Después de la depuración, sé que el peso y el valor son cero, pero mencioné el peso y el valor del producto.

Código:

Create.php

<?php
namespace yourmodule\namespace\Helper;
class Create extends \Magento\Framework\App\Helper\AbstractHelper
{
     /**
    * @param Magento\Framework\App\Helper\Context $context
    * @param Magento\Store\Model\StoreManagerInterface $storeManager
    * @param Magento\Catalog\Model\Product $product
    * @param Magento\Framework\Data\Form\FormKey $formKey $formkey,
    * @param Magento\Quote\Model\Quote $quote,
    * @param Magento\Customer\Model\CustomerFactory $customerFactory,
    * @param Magento\Sales\Model\Service\OrderService $orderService,
    */
    public function __construct(
        \Magento\Framework\App\Helper\Context $context,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        \Magento\Catalog\Model\Product $product,
        \Magento\Framework\Data\Form\FormKey $formkey,
        \Magento\Quote\Model\QuoteFactory $quote,
        \Magento\Quote\Model\QuoteManagement $quoteManagement,
        \Magento\Customer\Model\CustomerFactory $customerFactory,
        \Magento\Customer\Api\CustomerRepositoryInterface $customerRepository,
        \Magento\Sales\Model\Service\OrderService $orderService,
        \Magento\Quote\Model\Quote\Address\Rate $shippingRate
    ) {
        $this->_storeManager = $storeManager;
        $this->_product = $product;
        $this->_formkey = $formkey;
        $this->quote = $quote;
        $this->quoteManagement = $quoteManagement;
        $this->customerFactory = $customerFactory;
        $this->customerRepository = $customerRepository;
        $this->orderService = $orderService;
        $this->shippingRate = $shippingRate;
        parent::__construct($context);
    }

    /**
     * Create Order On Your Store
     * 
     * @param array $orderData
     * @return array
     * 
    */
    public function createMageOrder($orderData) {
        $store=$this->_storeManager->getStore();
        $websiteId = $this->_storeManager->getStore()->getWebsiteId();
        $customer=$this->customerFactory->create();
        $customer->setWebsiteId($websiteId);
        $customer->loadByEmail($orderData['email']);// load customet by email address
        if(!$customer->getEntityId()){
            //If not avilable then create this customer 
            $customer->setWebsiteId($websiteId)
                    ->setStore($store)
                    ->setFirstname($orderData['shipping_address']['firstname'])
                    ->setLastname($orderData['shipping_address']['lastname'])
                    ->setEmail($orderData['email']) 
                    ->setPassword($orderData['email']);
            $customer->save();
        }
        $quote=$this->quote->create(); //Create object of quote
        $quote->setStore($store); //set store for which you create quote
        // if you have allready buyer id then you can load customer directly 
        $customer= $this->customerRepository->getById($customer->getEntityId());
        $quote->setCurrency();
        $quote->assignCustomer($customer); //Assign quote to customer

        //add items in quote
        foreach($orderData['items'] as $item){
            $product=$this->_product->load($item['product_id']);
            //$product->setPrice($item['price']);
             $product->setWeight(20);
            $quote->addProduct(
                $product,
                intval($item['qty'])
            );
        }

        //Set Address to quote
        $quote->getBillingAddress()->addData($orderData['shipping_address']);
        $quote->getShippingAddress()->addData($orderData['shipping_address']);

        // Collect Rates and Set Shipping & Payment Method

        $shippingAddress=$quote->getShippingAddress();

        /*$shippingAddress->setCollectShippingRates(true)
                        ->collectShippingRates()
                        ->setShippingMethod('fedex_FEDEX_GROUND'); //shipping method

        */
        //$this->shippingRate
          //  ->setCode('fedex_FEDEX_GROUND');
            //->getPrice(1);
        //$shippingAddress = $cart->getShippingAddress();
        //@todo set in order data
        $shippingAddress->setCollectShippingRates(true)
            ->collectShippingRates()
            ->setShippingMethod('fedex_FEDEX_GROUND'); //shipping method
        //$quote->getShippingAddress()->addShippingRate($this->shippingRate);       
        $quote->setPaymentMethod('checkmo'); //payment method
        $quote->setInventoryProcessed(false); //not effetc inventory
        $quote->save(); //Now Save quote and your quote is ready

        // Set Sales Order Payment
        $quote->getPayment()->importData(['method' => 'checkmo']);

        // Collect Totals & Save Quote
        $quote->collectTotals()->save();

        // Create Order From Quote
        $order = $this->quoteManagement->submit($quote);

        $order->setEmailSent(0);
        $increment_id = $order->getRealOrderId();
        if($order->getEntityId()){
            $result['order_id']= $order->getRealOrderId();
        }else{
            $result=['error'=>1,'msg'=>'Your custom message'];
        }
        return $result;
    }
}

Registro de depuración de FedEx:

array (
  'request' => 
  array (
    'WebAuthenticationDetail' => 
    array (
      'UserCredential' => 
      array (
        'Key' => '****',
        'Password' => '****',
      ),
    ),
    'ClientDetail' => 
    array (
      'AccountNumber' => 'XXXXXX',
      'MeterNumber' => '****',
    ),
    'Version' => 
    array (
      'ServiceId' => 'crs',
      'Major' => '10',
      'Intermediate' => '0',
      'Minor' => '0',
    ),
    'RequestedShipment' => 
    array (
      'DropoffType' => 'REGULAR_PICKUP',
      'ShipTimestamp' => '2017-06-27T06:09:23+00:00',
      'PackagingType' => 'YOUR_PACKAGING',
      'TotalInsuredValue' => 
      array (
        'Amount' => 0,
        'Currency' => 'USD',
      ),
      'Shipper' => 
      array (
        'Address' => 
        array (
          'PostalCode' => '90034',
          'CountryCode' => 'US',
        ),
      ),
      'Recipient' => 
      array (
        'Address' => 
        array (
          'PostalCode' => '11701',
          'CountryCode' => 'US',
          'Residential' => false,
          'City' => 'Ave Forest Hills',
        ),
      ),
      'ShippingChargesPayment' => 
      array (
        'PaymentType' => 'SENDER',
        'Payor' => 
        array (
          'AccountNumber' => 'XXXXX',
          'CountryCode' => 'US',
        ),
      ),
      'CustomsClearanceDetail' => 
      array (
        'CustomsValue' => 
        array (
          'Amount' => 0,
          'Currency' => 'USD',
        ),
      ),
      'RateRequestTypes' => 'LIST',
      'PackageCount' => '1',
      'PackageDetail' => 'INDIVIDUAL_PACKAGES',
      'RequestedPackageLineItems' => 
      array (
        0 => 
        array (
          'Weight' => 
          array (
            'Value' => 0.0,
            'Units' => 'LB',
          ),
          'GroupPackageCount' => 1,
        ),
      ),
      'ServiceType' => 'SMART_POST',
      'SmartPostDetail' => 
      array (
        'Indicia' => 'PRESORTED_STANDARD',
        'HubId' => NULL,
      ),
    ),
  ),
  'result' => 
  stdClass::__set_state(array(
     'HighestSeverity' => 'ERROR',
     'Notifications' => 
    stdClass::__set_state(array(
       'Severity' => 'ERROR',
       'Source' => 'crs',
       'Code' => '809',
       'Message' => 'Package 1 - Weight is missing or invalid. ',
       'LocalizedMessage' => 'Package 1 - Weight is missing or invalid. ',
       'MessageParameters' => 
      stdClass::__set_state(array(
         'Id' => 'PACKAGE_INDEX',
         'Value' => '1',
      )),
    )),
     'Version' => 
    stdClass::__set_state(array(
       'ServiceId' => 'crs',
       'Major' => 10,
       'Intermediate' => 0,
       'Minor' => 0,
    )),
  )),
) {"is_exception":false} []

Datos de los pedidos :

$orderData = [
     'email'        => '[email protected]', //buyer email id
     'shipping_address' =>[
            'firstname'    => 'Ramki ', //address Details
            'lastname'     => 'ram',
                    'street' => '10119 Ascan Ave Forest Hills',
                    'city' => 'Ave Forest Hills',
            'country_id' => 'US',
            'region' => '43',
            'postcode' => '11701',
            'telephone' => 'XXXX',
            'fax' => '32423',
            'save_in_address_book' => 1
                 ],
   'items'=> [ //array of product which order you want to create
              ['product_id'=>'2','qty'=>1]
            ]
];

Ayúdenme en esto. Probé una tarifa plana y el envío gratuito funciona, pero FedEx no funciona.

Vaya al catálogo, seleccione el producto y agregue peso en el campo de atributo de peso.