Lesson 7, problems in deploying 00-deploy-mocks.js

[ghost]

The error(s) I'm getting
Error: ERROR processing skip func of /home/amey/hardhat/hardhat-fund-me/deploy/01-deploy-fund-me.js:

TypeError: Cannot read properties of undefined (reading 'ethUsdPriceFeed')

When I click on the error, i'm taken to this line in 01-deploy-fund-me.js

ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]

Here is the entire 01-deploy-fund-me.js code

const { network, getNamedAccounts, deployments } = require("hardhat")
const { networkConfig, developmentChains } = require("../helper-hardhat-config")
const chainId = network.config.chainId
// module.exports.deafult = deployFunc

ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]

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

    const fundme = await deploy("FundMe", {
        from: deployer,
        args: [ethUsdPriceFeedAddress], //priceFeed address
        log: true,
    })
}

AND

here is 00-deploy-mock.js code

const { network, getNamedAccounts, deployments } = require("hardhat")
const {
    developmentChains,
    DECIMALS,
    INITIAL_ANSWER,
} = require("../helper-hardhat-config")

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

    if (developmentChains.includes(network.name)) {
        log("Local network detected! Deploying mocks...")
        await deploy("MockV3Aggregator", {
            contract: "MockV3Aggregator",
            from: deployer,
            log: true,
            args: (DECIMALS, INITIAL_ANSWER),
        })
        log("Mocks Deployed!")
        log("--------------------------------------------------------------")
    }
}

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

Thank You.

[krakxn]

Show helper-hardhat-config.js

[krakxn]

I think I found the problem, copy the following code: (deploy-fund-me)

const { networkConfig, developmentChains } = require("../helper-hardhat-config")
const { network, deployments, getNamedAccounts } = require("hardhat")
const { verify } = require("../utils/verify")
// Instead of const { getNamedAccounts, deployments } = hre
module.exports = async ({ getNamedAccounts, deployments }) => {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId
    let ethUsdPriceFeedAddress
    // Local network
    if (chainId == 31337) {
        const ethUsdAggregator = await deployments.get("MockV3Aggregator")
        ethUsdPriceFeedAddress = ethUsdAggregator.address
    } else {
        ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]
    }
    // When going for a local network such as hardhat or localhost we should use a mock
    const args = [ethUsdPriceFeedAddress]
    const fundMe = await deploy("FundMe", {
        from: deployer,
        args: args, // Pricefeed address
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1, // If no blockConfirmations given in hardhat.config
    })
    if ( // If not a local network, we verify the contract
        !developmentChains.includes(network.name) &&
        process.env.ETHERSCAN_API_KEY
    ) {
        await verify(fundMe.address, args)
    }
    log("----------------------------------------------------")
}

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

You can edit the verify part and the ETHERSCAN_API_KEY as per you conventions.

[ghost]

Just now I had copied the code for 00-deploy-mocks from the GitHub repo, i couldn't find the problem but it worked!

Also Thank you so much for the help!!

update: I think the problem was with these values and hardcoding them at the start solves it!

const {
    developmentChains,
    DECIMALS,
    INITIAL_ANSWER,
} = require("../helper-hardhat-config")

[krakxn]

The problem was that ethUsdPriceFeed was not initialized, here: ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]

[ghost]

The problem was that ethUsdPriceFeed was not initialized, here: ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]

oh i get it, it works now

once again thank you!

[krakxn]

You're welcome - all the best with the course!

BTW - when this is solved, please close it by selecting an answer for others to refer to in the future.