Lesson 9: TypeError: Cannot read property 'length' of undefined

[samlak]

I tried to deploy my solidity code but it is not going successfully. I have tried to follow a similar problem posted here but the error still persists. This is the error:

Error: ERROR processing /Users/mac/Desktop/Project/hd-fcc/hardhat-lottery/deploy/00-deploy-mocks.js:
TypeError: Cannot read property 'length' of undefined

This is my 00-deploy-mocks.js file

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

const BASE_FEE = ethers.utils.parseEther("0.25");
const GAS_PRICE_LINK = 1e9;

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

    if (developmentChains.includes(network.name)) {
        log("Local network detected! Deploying mocks...");
        await deploy("VRFCoordinatorV2Mock", {
            from: deployer,
            log: true,
            args: args,
        });
        log("Mocks Deployed!");
        log("------------------------------------------------");
    }
};

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

This is hardhat.config.js file

require("dotenv").config();
require("@nomiclabs/hardhat-etherscan");
require("@nomiclabs/hardhat-waffle");
require("hardhat-gas-reporter");
require("solidity-coverage");
require("hardhat-deploy");
require("hardhat-contract-sizer");

const RINKEBY_RPC_URL = process.env.RINKEBY_RPC_URL || "";
const PRIVATE_KEY = process.env.PRIVATE_KEY || "";
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || "";
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY || "";

module.exports = {
    solidity: "0.8.7",
    defaultNetwork: "hardhat",
    networks: {
        hardhat: {
            chainId: 31337,
            blockConfirmations: 1,
        },
        rinkeby: {
            url: RINKEBY_RPC_URL,
            chainId: 4,
            accounts: [PRIVATE_KEY],
            blockConfirmations: 6,
        },
    },
    namedAccounts: {
        deployer: {
            default: 0,
            1: 0,
        },
        player: {
            default: 1,
        },
    },
};

This is helper-hardhat-config.js file

const { ethers } = require("hardhat");

const networkConfig = {
    4: {
        name: "rinkeby",
        vrfCoordinatorV2: "0x6168499c0cFfCaCD319c818142124B7A15E857ab",
        entranceFee: ethers.utils.parseEther("0.01"),
        gasLane: "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc",
        subscriptionId: "0",
        callbackGasLimit: "500000",
        interval: "30",
    },
    31337: {
        name: "localhost",
        entranceFee: ethers.utils.parseEther("0.01"),
        gasLane: "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc",
        callbackGasLimit: "500000",
        interval: "30",
    },
};

const developmentChains = ["hardhat", "localhost"];

module.exports = {
    networkConfig,
    developmentChains,
};

@PatrickAlphaC @ali-thegilfoyle What is the way out?

[alymurtazamemon]

@PatrickAlphaC

[samlak]

I don't know what the problem is. I have been on it for more than 2 days.

[PatrickAlphaC]

This has been asked a number of times, please be sure to look back at previously asked questions!

#69

You'll see you need to do:

const { deployer } = await getNamedAccounts();

[samlak]

Thank you very much. I looked at it but I did not take note of the await keyword