BigNumber Value error

[monzzzz]

Can anyone help me, please?

Lesson 9
It threw this error;

Error: ERROR processing /home/elmond/folder/hh-fcc/hardhat-smartcontract-lottery-fcc/deploy/01-deploy-raffle.js:
Error: invalid BigNumber value (argument="value", value=undefined, code=INVALID_ARGUMENT, version=bignumber/5.7.0)

my code: 01-deploy-raffle.js

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("1")

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

    if (developmentChains.includes(network.name)) {
        // hardhat
        const vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock")
        vrfCoordinatorV2Address = vrfCoordinatorV2Mock.address
        const transactionResponse = await vrfCoordinatorV2Mock.createSubscription()
        const transactionReceipt = await transactionResponse.wait(1)
        const subscriptionId = transactionReceipt.events[0].args.subId
        // Fund the subscription
        await vrfCoordinatorV2Mock.fundSubscription(subscriptionId, VRF_SUB_FUND_AMOUNT)
    } else {
        // other chains
        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"]

[pratokko]

Hello please share your helper-hardhat-config file

[pratokko]

I see there is a syntax error because you are trying to declare a variable with the same name in the same scope what you can do is remove the const on the subscription id since you already declared it just say this instead

subscriptionId = transactionReceipt.events[0].args.subId

[monzzzz]

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("1")

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

if (developmentChains.includes(network.name)) {
    // hardhat
    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
    await vrfCoordinatorV2Mock.fundSubscription(subscriptionId, VRF_SUB_FUND_AMOUNT)
} else {
    // other chains
    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, //  pass to the constructor in the Raffle contract
    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"]

I removed it to be like the code above, but it still threw the same error

[monzzzz]

This is my hardhat.config

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()

/** @type import('hardhat/config').HardhatUserConfig */
const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY
module.exports = {
defaultNetwork: "hardhat",
networks: {
hardhat: {
chainId: 31337,
blockConfirmations: 1,
},
sepolia: {
chainId: 11155111,
blockConfirmations: 6,
url: SEPOLIA_RPC_URL,
accounts: [PRIVATE_KEY],
},
},
solidity: "0.8.7",
namedAccounts: {
deployer: {
default: 0,
},
player: {
default: 1,
},
},
}

[pratokko]

also send your helper-hardhat-config and try changing your ETH to like a higher number

const VRF_SUB_FUND_AMOUNT = ethers.utils.parseEther("10")

try this lets see

[monzzzz]

My helper-hardhat-config

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

const networkConfig = {
11155111: {
name: "sepolia",
vrfCoordinatorV2: "0x8103B0A8A00be2DDC778e6e7eaa21791Cd364625",
entranceFee: ethers.utils.parseEther("0.01"),
gasLane: "0x474e34a077df58807dbe9c96d3c009b23b3c6d0cce433e59bbf5b34f823bc56c",
subscriptionId: "0",
callbackgasLimit: "500000",
interval: "30",
},
31337: {
name: "hardhat",
entranceFee: ethers.utils.parseEther("0.01"),
gasLane: "0x474e34a077df58807dbe9c96d3c009b23b3c6d0cce433e59bbf5b34f823bc56c",
callbackgasLimit: "500000",
interval: "30",
subscriptionId: "0",
},
}

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

module.exports = {
networkConfig,
developmentChains,
}
`

[alymurtazamemon]

@MoNzZz console log the args array and see which value is undefined.

const args = [
    vrfCoordinatorV2Address,
    entranceFee,
    gasLane,
    subscriptionId,
    callbackGasLimit,
    interval,
]

console.log(args); // here

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

[monzzzz]

my callbackGaslimit is undefined.
how can I do?

[alymurtazamemon]

@monzzzz I spotted the error, there is spelling mistake. In helper file, spelling is callbackgasLimit but in deploy file this;

const callbackGasLimit = networkConfig[chainId]["callbackGasLimit"]

[monzzzz]

it's working. Thank you so much.

[alymurtazamemon]

@monzzzz Make sure to mark the answer at the end.