Lesson 9: Error Thrown when executing hh test and hh deploy. Would appreciate some help.

[egutierrez130]

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("2")

module.exports = async ({ getNamedAccounts, deployments }) => {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId
    let vrfCoordinatorV2Address, subscriptionId, vrfCoordinatorV2Mock

    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
        // Usuall, 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"]

Hello on this 01-deploy-raffle.js file, I am running into the following error when running hh test and hh deploy in the terminal.
Can someone tell me what's going on?
Thank you so much!

1) Raffle Unit Tests
       "before each" hook for "Initializes the raffle correctly":
     ERROR processing /Users/edgargutierrez/hh-fcc/hardhat-smartcontract-lottery-fcc/deploy/01-deploy-raffle.js:
TypeError: Cannot read properties of undefined (reading 'address')
    at Object.module.exports [as func] (/Users/edgargutierrez/hh-fcc/hardhat-smartcontract-lottery-fcc/deploy/01-deploy-raffle.js:15:56)

Also, here is a link to my repo if needed.

[parishill25]

vrfCoordinatorV2Address = vrfCoordinatorV2Mock.address (remove vrfCoordinatorV2Mock.address) and try VRFCoordinatorV2Mock.address

[egutierrez130]

@parishill25 Thank you so much !!! you are a life saver! That helped and did the trick!
It threw a few more errors on the following:

vrfCoordinatorV2Mock.createSubscription() and vrfCoordinatorV2Mock.fundSubscription

but thankfully I applied your suggestion to these as well and it worked like a charm. Thank you again!

I have updated that block of code and dropping it in here for reference:

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
        await VRFCoordinatorV2Mock.fundSubscription(subscriptionId, VRF_SUB_FUND_AMOUNT)
    } else {
        vrfCoordinatorV2Address = networkConfig[chainId]["vrfCoordinatorV2"]
        subscriptionId = networkConfig[chainId]["subscriptionId"]
    }