Lesson 9: 01-deploy Type error

[jacobhay2626]

I have seen this exact same type error message in many other questions on here but none seem to be similar to my situation, my error seems to be in the 01-deploy file and i cannot seem to identify where the issue is. Any help greatly appreciated.

when running hh deploy i get the error code:

Error: ERROR processing /Users/jacobhayward/Desktop/CODE/hh-fcc/hardhat-smartcontract-lottery-fcc/deploy/01-deploy-raffle.js:
TypeError: Cannot read properties of undefined (reading 'length')

Here are my files:

01-deploy-raffle.js:

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

const VRF_SUB_FUND_AMOUNT = ethers.utils.parseEther("3")

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()
        subscriptionId = transactionReceipt.events[0].args.subId
        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)
    }
}

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

00-deploy-mocks.js:

const { developmentChains } = require("../helper-hardhat-config")

const BASE_FEE = ethers.utils.parseEther("0.25") // premium is 0.25 LINK
const GAS_PRICE_LINK = 1e9

module.exports = async function ({ deployments, getNamedAccounts }) {
    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...")
        await deploy("VRFCoordinatorV2Mock", {
            from: deployer,
            args: args,
            log: true,
        })
        log("Mocks deployed")
        log("---------------")
    }
}

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

helper-hardhat-config.js:

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: "hardhat",
        entranceFee: ethers.utils.parseEther("0.01"),
        gasLane: "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc",
        callBackGasLimit: "500000",
        interval: "30",
    },
}

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

module.exports = {
    networkConfig,
    developmentChains,
}

hardhat.config.js:

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

const RINKEBY_RPC_URL = process.env.RINKEBY_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY

module.exports = {
    defaultNetwork: "hardhat",
    networks: {
        hardhat: {
            chainId: 31337,
            blockConfirmations: 1,
        },
        rinkeby: {
            chainId: 4,
            blockConfirmations: 6,
            url: RINKEBY_RPC_URL,
            accounts: [PRIVATE_KEY],
        },
    },
    solidity: "0.8.8",
    namedAccounts: {
        deployer: {
            default: 0,
        },

        player: {
            default: 1,
        },
    },
}

[krakxn]

The problem lies in the file 01-deploy-raffle.js; it should be const { deployer } = await getNamedAccounts() with the added parenthesis as it is a function. Hope this helps!

[jacobhay2626]

I figured it out not long after posting it but thankyou for the response!