Error: invalid BigNumber value Lesson 14

[Focalized]

I'm attempting to deploy 02-deploy-random-ipfs-nft.js

After running hh deploy, I get in terminal: Error: invalid BigNumber value (argument="value", value=undefined, code=INVALID_ARGUMENT, version=bignumber/5.6.2)

Here is my 02-deploy-random-ipfs-nft.js code:

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

const imagesLocation = "./images/randomNft/"

const metadataTemplate = {
    name: "",
    description: "",
    image: "",
    attributes: [
        {
            trait_type: "GoodBoy",
            value: 100,
        },
    ],
}

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

    // get the IPFS hashes of our images
    if (process.env.UPLOAD_TO_PINATA == "true") {
        tokenUris = await handleTokenUris()
    }

    // 1. With your own IPFS node.
    // Pinata

    if (developmentChains.includes(network.name)) {
        const vrfCoordinatorV2Mock = await ethers.getContract(
            "VRFCoordinatorV2Mock"
        )
        vrfCoordinatorV2Address = vrfCoordinatorV2Mock.address
        const tx = await vrfCoordinatorV2Mock.createSubscription()
        const txReceipt = await tx.wait(1)
        subscriptionId = txReceipt.events[0].args.subscriptionId
    } else {
        vrfCoordinatorV2Address = networkConfig[chainId].vrfCoordinatorV2
        subscriptionId = networkConfig[chainId].subscriptionId
    }

    log("-------------------------------")
    const args = [
        vrfCoordinatorV2Address,
        subscriptionId,
        networkConfig[chainId].gasLane,
        networkConfig[chainId].callbackGasLimit,
        tokenUris,
        networkConfig[chainId].mintFee,
    ]

    const randomIpfsNft = await deploy("RandomIpfsNft", {
        from: deployer,
        args: args,
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    })

    log("-------------------------------")

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

async function handleTokenUris() {
    tokenUris = []
    // store the Image in IPFS
    // store the metadata in IPFS
    const { responses: imageUploadResponses, files } = await storeImages(
        imagesLocation
    )
    for (imageUploadResponseIndex in imageUploadResponses) {
        // create metadata
        // upload the metadata
        let tokenUriMetadata = { ...metadataTemplate }
        // pug.png, st-bernard.png
        tokenUriMetadata.name = files[imageUploadResponseIndex].replace(
            ".png",
            ""
        )
        tokenUriMetadata.description = `An adorable ${tokenUriMetadata.name} pup!`
        tokenUriMetadata.image = `ipfs://${imageUploadResponses[imageUploadResponseIndex].IpfsHash}`
        console.log(`Uploading ${tokenUriMetadata.name}...`)
        // store the JSON to pinata/IPFS
        const metadataUploadResponse = await storeTokenUriMetadata(
            tokenUriMetadata
        )
        tokenUris.push(`ipfs://${metadataUploadResponse.IpfsHash}`)
    }
    console.log("Token URIs Uploaded! They are:")
    console.log(tokenUris)
    return tokenUris
}
module.exports.tags = ["all", "randomipfs", "main"]

Here is my helper-hardhat-config.js:

const networkConfig = {
    31337: {
        name: "localhost",
        vrfCoordinatorV2: "0x6168499c0cFfCaCD319c818142124B7A15E857ab",
        subscriptionId: "8920",
        ethUsdPriceFeed: "0x9326BFA02ADD2366b30bacB125260Af641031331",
        gasLane:
            "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc", // 30 gwei
        interval: "2",
        callbackGasLimit: "500000", // 500,000 gas
        mintFee: "10000000000000000", // 0.01 ETH
    },
    // Price Feed Address, values can be obtained at https://docs.chain.link/docs/reference-contracts
    // Default one is ETH/USD contract on Kovan
    4: {
        name: "rinkeby",
        vrfCoordinatorV2: "0x6168499c0cFfCaCD319c818142124B7A15E857ab",
        subscriptionId: "8920", // add your ID here!
        gasLane:
            "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc",
        interval: "2",
        ethUsdPriceFeed: "0x8A753747A1Fa494EC906cE90E9f37563A8AF630e",
        callbackGasLimit: "500000", // 500,000 gas
        mintFee: "10000000000000000", // 0.01 ETH
    },
}

const DECIMALS = "18"
const INITIAL_PRICE = "200000000000000000000"
const developmentChains = ["hardhat", "localhost"]

module.exports = {
    networkConfig,
    developmentChains,
    DECIMALS,
    INITIAL_PRICE,
}

I believe my chainId isn't being pulled from helper-hardhat-config.js for when I hover over the syntax it just says const chainId: number | undefined and I've quadruple checked spelling and I just can't seem to find anything wrong with my args or imports.

Attempted solution:

Substituting if (developmentChains.includes(network.name)) with (chainId == 31337)

[Focalized]

I'm probably the most impatient person ever!!

I had to change const args = [ to args = [

and then I actually had subscriptionId = txReceipt.events[0].args.subId as subscriptionId = txReceipt.events[0].args.subscriptionId

Changing both of these fixed my issue.