Lesson 7 | 10:52:00| Can't deploy fundMe due to "Invalid priceFeed address error"

[enless-c]

Hi guys, I have been stuck on this problem for two days now, I have read similar questions in this discussion but haven't found the solution. I want to deploy my FundMe contracts using 01-deploy-fund-me.js script, however I get this error:

Error: invalid address (argument="address", value=undefined, code=INVALID_ARGUMENT, version=address/5.7.0) (argument="priceFeedAddress", value=undefined, code=INVALID_ARGUMENT, version=abi/5.7.0)
    at Logger.makeError (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/logger/src.ts/index.ts:269:28)
    at Logger.throwError (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/logger/src.ts/index.ts:281:20)
    at Logger.throwArgumentError (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/logger/src.ts/index.ts:285:21)
    at AddressCoder.Coder._throwError (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/abstract-coder.ts:68:16)
    at AddressCoder.encode (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/address.ts:22:18)
    at /Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/array.ts:71:19
    at Array.forEach (<anonymous>)
    at pack (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/array.ts:54:12)
    at TupleCoder.encode (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/tuple.ts:54:20)
    at AbiCoder.encode (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/abi-coder.ts:111:15)
    at DeploymentsManager.executeDeployScripts (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1222:19)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at runNextTicks (node:internal/process/task_queues:65:3)
    at listOnTimeout (node:internal/timers:528:9)
    at processTimers (node:internal/timers:502:7)
    at DeploymentsManager.runDeploy (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:219:14)
    at Environment.run (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:131:14)
    at SimpleTaskDefinition.action (/Users/test_user/Documents/Blockchain/Javascript_Youtube_Tutorial/follow_hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/index.ts:584:32)
error Command failed with exit code 1.

• My mocks are deploying successfuly and it is the problem with the 01-deploy-fund-me script.

• Here is the script for 01-deploy-fund-me.js:

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

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

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


    const fundMe = await deploy("FundMe", {
        from: deployer,
        args: [ethUsdPriceFeedAddress], // put price feed address
        log: true,
    })

    log(
        "----------------------------------------------------------------------------------"
    )
}
module.exports.tags = ["all", "fundme"]

Here is the script for helper-hardhat-config.js:

const networkConfig = {
    5: {
        name: "goerli",
        ethUsdPriceFeed: "0xD4a33860578De61DBAbDc8BFdb98FD742fA7028e",
    },
    // 31337?
}

const developmentChains = ["hardhat", "localhost"]
const DECIMALS = 8
const INITIAL_ANSWER = 200000000000

module.exports = {
    networkConfig,
    developmentChains,
    DECIMALS,
    INITIAL_ANSWER,
}

[mattjaf]

Console log the address, check if it's undefined

[enless-c]

It is indeed undefined, but I can't understand why.

[enless-c]

I have found the typo I have declared ethUSDPriceFeedAddress instead of ethUsdPriceFeedAddress on line 14