lesson 7, TypeError: Cannot read properties of undefined (reading '4')

[TradMod]

I'm getting these TypeErrors again and again. Pls, help me out.

Error: An unexpected error occurred:

Error: ERROR processing /mnt/e/AB Dee/DEV/Web Dev/Fund Me/deploy/01-deploy-fund-me.js:
TypeError: Cannot read properties of undefined (reading '4')

My 01-deploy-fund-me.js:

const { networkConfig, } = require("../helper-hardhat-config");
const { network } = require("hardhat");
const { verify } = require("../utils/verify");


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

    // const ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"];
    let ethUsdPriceFeedAddress;

    if (chainId == 31337) {
        const ethUsdAggregator = await deployments.get("MockV3Aggregator");
        ethUsdPriceFeedAddress = ethUsdAggregator.address;
    } else {
        ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"];
    }

    const arg = [ethUsdPriceFeedAddress];

    const fundMe = await deploy("FundMe", {
        from: deployer,
        args: arg,
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    })
    log(`FundMe deployed at ${fundMe.address}`)

    if (/*chainId != 31337*/!developmentChains.includes(network.name) && process.env.ETHERSCAN_API_KEY) {
        await verify(fundMe.address, arg);
    }

    log("-----------------------------------------------------------------------------");
}

module.exports.tags = ["all", "fundme"];

hardhatConfig.js Networks:

networks: {
    rinkeby: {
      url: process.env.RINKEBY_RPC_URL,
      accounts: [process.env.PRIVATE_KEY],
      chainId: 4,
      blockConfirmations: 5,
    }
  }

And Also I can't figure out why my Mocks are getting deployed when I run npx hardhat deploy --network rinkeby.

Pls help
Thanks

[MichaelGKing]

Try adding developmentChains to your first require statement.

As in const { networkConfig, developmentChains } = require("../helper-hardhat-config")

[TradMod]

added but still getting the same err :(

[alymurtazamemon]

@DevABDee show your helper config file

[alymurtazamemon]

@DevABDee Please check all typos, your code has lots of typos.

[TradMod]

Thanks, guys.Now Everything is working good Alhumduilah :)

[DorianDaSilva]

@DevABDee I am having the same issue. Were you able to fix it?
#701

[TradMod]

Yes brother. My Code had many typos. I was able to fix those with the help of these guys.
Check your code If you have written await functions correctly & all typos are clear or not.
I was fascing the same issue also when my async functions were not clear....
You can also share your code.....

[DorianDaSilva]

@DevABDee Cool, thanks man!