Leason 9: TypeError: Cannot read properties of undefined (reading 'length')

[N-dcool]

when i am trying to deploy my contract its showing error, I need help I am not able to where I am getting error :(

github repo link: https://github.com/N-dcool/hardhat-smartcontract-lottery

[N-dcool]

here is my 00-deploy-mocks.js :

const { network, ethers } = require("hardhat");
const { developmentChains } = require("../helper-hardhat-config");

const BASE_FEE = ethers.utils.parseEther("0.25"); // 0.25 is the premium. It cost 0.25 LINK per request.
const GAS_PRICE_LINK = 1e9; //link per gas or calculated value based on the gas price of the chain

// what if ETH price 📈 $1,000,000,000
// Chainlink Nodes pay the gas fees to give us randomness & do external execution
// so they price of requests change based on the price of gas

module.exports = async function ({ getNamedAccounts, deployments }) {
    const { deploy, log } = deployments;
    const { deployer } = await getNamedAccounts;
    const args = [BASE_FEE, GAS_PRICE_LINK];

    if (developmentChains.includes(network.name)) {
        log("Local network detected! Deploying mocks... 🚀");
        // deploy a mock vrfCoordinator..
        await deploy("VRFCoordinatorV2Mock", {
            from: deployer,
            log: true,
            args: args,
        });
        log("Mocks deployed! 🎀");
        log("----------------------------------------------------");
    }
};

module.exports.tags = ["all", "mocks"];

01-deploy-raffle:

const { network } = require("hardhat");
const { developmentChains, networkConfig } = require("../helper-hardhat-config");
const { verify } = require("../utils/verify");

const VRF_SUB_FUND_AMOUNT = ethers.utils.parseEther("2");

module.exports = async function ({ getNamedAccounts, deployments }) {
    const { deploy, log } = deployments;
    const { deployer } = await getNamedAccounts();
    const chainId = network.config.chainId;
    let vrfCoordinatorV2Address, subscriptionId;

    if (developmentChains.includes(network.name)) {
        const vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock");
        vrfCoordinatorV2Address = vrfCoordinatorV2Mock.address;
        const transactionResponse = await vrfCoordinatorV2Mock.createSubscription();
        const transactionReceipt = await transactionResponse.wait(1);
        subscriptionId = transactionReceipt.events[0].args.subId;
        // Fund the subscription
        // Usually, you'd need the LINK token on a real network
        await vrfCoordinatorV2Mock.fundSubscription(subscriptionId, VRF_SUB_FUND_AMOUNT);
    } else {
        vrfCoordinatorV2Address = networkConfig[chainId]["vrfCoordinatorV2"];
        subscriptionId = networkConfig[chainId]["subscriptionId"];
    }

    const entranceFee = networkConfig[chainId]["entranceFee"];
    const gasLane = networkConfig[chainId]["gasLane"];
    const callbackGasLimit = networkConfig[chainId]["callbackGasLimit"];
    const interval = networkConfig[chainId]["interval"];

    const args = [
        vrfCoordinatorV2Address,
        entranceFee,
        gasLane,
        subscriptionId,
        callbackGasLimit,
        interval,
    ];
    const raffle = await deploy("Raffle", {
        from: deployer,
        args: args,
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    });

    if (!developmentChains.includes(network.name) && process.env.ETHERSCAN_API_KEY) {
        log("Verifying... 🔍");
        await verify(raffle.address, args);
    }
    log("--------------------------------------------------------");
};

module.exports.tags = ["all", "raffle"];

[paulcoffee85]

Your line:
const { deployer } = await getNamedAccounts; get named accounts needs to be getNamedAccounts()

[N-dcool]

Thanks for the help 😇.

[paulcoffee85]

Anytime 👍