Error: invalid BigNumber value (argument="value", value=undefined, code=INVALID_ARGUMENT, version=bignumber/5.6.2)

Question

I was doing the Patrick Collins tutorial and link got this error Error: invalid BigNumber value (argument="value", value=undefined, code=INVALID_ARGUMENT, version=bignumber/5.6.2) when I was running hh deploy I got this error for the 01.deploy-raffle.js.

01.deploy-raffle.js code:

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("30")

module.exports = async function ({ getNamedAccounts, deployments }) {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId
    let vrfCoordinatorV2Adress, subscriptionId

    if (developmentChains.includes(network.name)) {
        const vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock")
        vrfCoordinatorV2Adress = vrfCoordinatorV2Mock.address
        const transactionResponse = await vrfCoordinatorV2Mock.createSubscription()
        const transactionRecipt = await transactionResponse.wait(1)
        subscriptionId = transactionRecipt.events[0].args.subId
        await vrfCoordinatorV2Mock.fundSubscription(subscriptionId, VRF_SUB_FUND_AMOUNT)
    } else {
        vrfCoordinatorV2Adress = 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 = [
        vrfCoordinatorV2Adress,
        entranceFee,
        gasLane,
        subscriptionId,
        callbackGasLimit,
        interval,
    ]
    const raffle = await deploy("Raffle", {
        from: deployer,
        args: args,
        log: true,
        waitConfirmation: network.config.blockConfirmation || 1,
    })

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

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

Answer 1

Check to see if the keys in the networkConfig object in the helper-hardhat-config.js file match the argument array you set up in 01-deploy-raffle.js.

const args = [
        vrfCoordinatorV2Adress,
        entranceFee,
        gasLane,
        subscriptionId,
        callbackGasLimit,
        interval,

If you have copied and pasted the helper-hardhat-config.js file like I did, the networkConfig object will have different keys.

31337: {
        name: "localhost",
        subscriptionId: "588",
        gasLane: "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc", // 30 gwei
        keepersUpdateInterval: "30",
        raffleEntranceFee: "100000000000000000", // 0.1 ETH
        callbackGasLimit: "500000", // 500,000 gas
    },

Making these adjustments to either of the scripts fixed the issue for me.

Best of luck!

Answer 2

I had the same error and needed to change keepersUpdateInterval to interval and raffleEntranceFee to entranceFee

It also helped adding console.log(args) to my code to see which were undefined which was causing the big number error.

Thanks for the help!