Lesson:10 Cannot read property 'readFileSync' of undefined

[Sunil-Reddy-Gummalla]

Hi Can Some one Help me on this
I am getting this Issue When I am Running hh node in Lottery Backend

My update-front-end,js

const { ethers, network } = require("hardhat")
const { fs } = require("fs")

const FRONT_END_ADDRESSS_FILE = "../nextjs-lottory-frontend-fcc/constants/contractAddress.json"
const FRONT_END_ABI_FILE = "../nextjs-lottory-frontend-fcc/constants/abi.json"

module.exports = async () => {
    if (process.env.UPDATE_FRONT_END) {
        console.log("Updating the FrontEnd ......")
        updateContractAddress()
        updateAbi()
    }
}

async function updateContractAddress() {
    const raffle = await ethers.getContract("Raffle")
    const currentAddress = JSON.parse(fs.readFileSync(FRONT_END_ADDRESSS_FILE, "utf8"))
    const chaindId = network.config.chainId.toString()
    if (chaindId in currentAddress) {
        {
            if (!currentAddress[chaindId].includes(raffle.address))
                currentAddress[chaindId].push(raffle.address)
        }
    }
    {
        currentAddress[chaindId] = [raffle.address]
    }
    fs.writeFileSync(FRONT_END_ADDRESSS_FILE, JSON.stringify(currentAddress))
}

async function updateAbi() {
    const raffle = await ethers.getContract("Raffle")
    fs.writeFileSync(FRONT_END_ABI_FILE, raffle.interface.format(ethers.utils.FormatTypes.JSON))
}
module.exports.tags = ["all", "frontend"]

I copied the Path and Pasted There.

[alymurtazamemon]

@Cryptobaba1 add {} in contractAddresses file and make sure the file path is correct because in the video Patrick frontend code was at the same folder where the lottery contract was placed, but your scenario can be different so make sure that also.

[Sunil-Reddy-Gummalla]

Added { } already and I checked the Paths also But not Sure Why it is Throwing that

[alymurtazamemon]

@Cryptobaba1 show me the directory, hh-fcc, I think lottory you have typo here in path, but this is a guess show that so I can confirm it.

[Sunil-Reddy-Gummalla]

[krakxn]

Can you make a repo and link here? Thank you

[adityabhattad2021]

The error is because of this line

const { fs } = require("fs")

change it to

const fs = require("fs")

And your error will be solved

[Sunil-Reddy-Gummalla]

Thanks @adityabhattad2021 That Worked

[adityabhattad2021]

Glad that helped!