LESSON:7: Getting this error while deploying on Rinkeby testnet.[SOLVED]

[ritesh798]

helper-hardhat-config.js

const networkConfig = {
  4: {
    name: "rinkeby",
    ethUsdPriceFeed: "0x8a753747a1fa494ec906ce90e9f37563a8af630e",
  },
  137: {
    name: "polygon",
    ethUsdPriceFeed: "0xf9680d99d6c9589e2a93a78a04a279e509205945",
  },
  31337: {
    name: "localhost",
  },
};

const developmentChains = ["hardhat", "localhost"];
const DECIMALS = 8;
const INITIAL_ANSWER = 200000000000;
module.exports = {
  networkConfig,
  developmentChains,
  DECIMALS,
  INITIAL_ANSWER,
};

hardhat-config.js

require("@nomicfoundation/hardhat-toolbox");
require("hardhat-deploy");
require("dotenv").config();

/** @type import('hardhat/config').HardhatUserConfig */
const RINKBY_RPC_URL = process.env.RINKBY_RPC_URL || "https://eth-rinkeby";
const PRIVATE_KEY = process.env.PRIVATE_KEY || "0xkey";
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || "key";
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY || "key";
module.exports = {
  solidity: {
    compilers: [{ version: "0.8.8" }, { version: "0.6.6" }],
  },
  defaultNetwork: "hardhat",
  networks: {
    rinkeby: {
      url: RINKBY_RPC_URL,
      accounts: [PRIVATE_KEY],
      chainId: 4,
      blockConfirmations:6,
    },
    localhost: {
      url: "http://127.0.0.1:8545/",
      chainId: 31337,
    },
  },

  etherscan: {
    apiKey: ETHERSCAN_API_KEY,
  },
  gasReporter: {
    enabled: false,
    outputFile: "gas-report.txt",
    noColors: true,
    currency: "USD",
    coinmarketcap: COINMARKETCAP_API_KEY,
  },
  namedAccounts: {
    deployer: {
      default: 0, // here this will by default take the first account as deployer
      1: 0, // similarly on mainnet it will take the first account as deployer. Note though that depending on how hardhat network are configured, the account 0 on one network can be different than on another
    },
  },
};

deploy-fundMe.js

// function deployFunc(hre) {
//   console.log("hiiii");
// }

// module.exports.default = deployFunc;

// module.exports = async (hre) => {
//     const {getNamedAccounts,deployments} = hre

// }
const {
  networkConfig,
  developmentChains,
} = 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.chianId;

  let ethUsdPriceFeedAddress;
  if (developmentChains.includes(network.name)) {
    const ethUsdAggregator = await deployments.get("MockV3Aggregator");
    ethUsdPriceFeedAddress = ethUsdAggregator.address;
  } else {
    ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"];
  }

  const args = [ethUsdPriceFeedAddress];

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

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

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

ERROR CONSOLE:

[krakxn]

Delete this line: const args = [ethUsdPriceFeedAddress];

Inside fundMe: args: [ethUsdPriceFeedAddress],

[krakxn]

This should fix it: const chainId = network.config.chainId; (fixed a typo by you)

[ritesh798]

Solved it it was my mistake I misspelled ChainId: const chainId = network.config.chianId; in this line
correct form const chainId = network.config.chainId;

[ritesh798]

thanks just caught it

[krakxn]

Awesome! Please close the discussion - best of luck with the course!

[krakxn]

BTW - No need to mention it in the title, instead, you can just select an answer and it will close the discussion automatically - and others can refer to the answer in the future. (open and closed discussions are segregated in two parts)