Magento 2 Error: Cannot instantiate interface

Error: Cannot instantiate interface MagentoInventorySalesApiApiGetProductSalableQtyInterface

Found this error while removing deprecation of StockStateInterface for REST API, Does anyone has an idea why this error occurs? Thanks in advance

My code is

namespace VendorModulePlugin;
use MagentoCatalogApiProductRepositoryInterface;
use MagentoInventorySalesApiApiGetProductSalableQtyInterface;
use MagentoQuoteApiCartRepositoryInterface;
use MagentoQuoteApiDataCartItemExtensionFactory;
use PsrLogLoggerInterface;

class CartItemPlugin
{

    /**
     * @var CartItemExtensionFactory
     */
    protected $cartItemExtension;
    /**
     * @var ProductRepositoryInterface
     */
    protected $productRepository;
    /**
     * @var GetProductSalableQtyInterface
     */
    protected $stockState;
    /**
     * @var LoggerInterface
     */
    protected $logger;

    /**
     * @param CartItemExtensionFactory $cartItemExtension
     * @param ProductRepositoryInterface $productRepository
     * @param LoggerInterface $logger
     * @param GetProductSalableQtyInterface $stockState
     */
    public function __construct(
        CartItemExtensionFactory $cartItemExtension,
        ProductRepositoryInterface $productRepository,
        LoggerInterface $logger,
        GetProductSalableQtyInterface $stockState
    ) {
        $this->cartItemExtension = $cartItemExtension;
        $this->productRepository = $productRepository;
        $this->logger = $logger;
        $this->stockState = $stockState;
    }
   
    public function afterSave(CartRepositoryInterface $subject,$quote
    ) {
        if ($quote !=null) {
            foreach ($quote->getItems() as $item) {
                $productData = $this->productRepository->get($item->getSku());
                $stock = $this->stockState->getStockQty($productData->getId());
                $stockArray = [
                    'image' => $productData->getThumbnail(),
                    'special_price' => $productData->getPrice(),
                    'stock_qty' => $stock,
                    'is_in_stock' => $productData->getStatus() ? "Yes" : "NO",
                ];
                $extensionAttributes = $item->getExtensionAttributes();
                $extensionAttributes->setStockItem($stockArray);
                $item->setExtensionAttributes($extensionAttributes);
            }
        }
        return $quote;
    }
}