Lesson 7

[MrUchie]

Repo https://github.com/MrUchie/hardhat-fund-me-fcc
Hi I've been stuck on this and don't understand why it isn't working. Any help would be appreciated.

This is the error code I'm receiving when I run yarn hardhat deploy --network goerli

Error: ERROR processing /Users/alzuber/hardhat-fund-me-fcc/deploy/01-deploy-fund-me.js:
Error: invalid address (argument="address", value=undefined, code=INVALID_ARGUMENT, version=address/5.7.0) (argument="priceFeed", value=undefined, code=INVALID_ARGUMENT, version=abi/5.7.0)
    at Logger.makeError (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/logger/src.ts/index.ts:269:28)
    at Logger.throwError (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/logger/src.ts/index.ts:281:20)
    at Logger.throwArgumentError (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/logger/src.ts/index.ts:285:21)
    at AddressCoder.Coder._throwError (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/abstract-coder.ts:68:16)
    at AddressCoder.encode (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/address.ts:22:18)
    at /Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/array.ts:71:19
    at Array.forEach (<anonymous>)
    at pack (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/array.ts:54:12)
    at TupleCoder.encode (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/coders/tuple.ts:54:20)
    at AbiCoder.encode (/Users/alzuber/hardhat-fund-me-fcc/node_modules/@ethersproject/abi/src.ts/abi-coder.ts:111:15)
    at DeploymentsManager.executeDeployScripts (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1222:19)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at DeploymentsManager.runDeploy (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:311:14)
    at Environment.run (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:159:14)
    at SimpleTaskDefinition.action (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/index.ts:584:32)
    at Environment._runTaskDefinition (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:311:14)
    at Environment.run (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:159:14)
    at SimpleTaskDefinition.action (/Users/alzuber/hardhat-fund-me-fcc/node_modules/hardhat-deploy/src/index.ts:669:5)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[MrUchie]

@alymurtazamemon
Could I please get some help?

[alymurtazamemon]

@MrUchie Please check the @pacelliv solution below, if it does not help then tag me again. Thanks.

[pacelliv]

It says the priceFeed variable is undefined, this is most likely due to a typo. Check the spelling of the variable in helper-hardhat-config and in the deploy script.

If you cannot find the typo, push the code to GitHub and leave a link, so we can help you.

[pacelliv]

No problem, I'll look into it.

[pacelliv]

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

You already declared a variable named ethUsdPriceFeedAddress, which is going to be reassigned depending to which network you're deploying.

If you declare a new const with that same name inside the else block, that variable is not being read at all because I think it only lives within the scope of the IF-statement, therefore, when you deploy to goerli ethUsdPriceFeedAddress has an undefined value.

Instead, inside the else block, reassigned the variable and not declare a new const, like this:

} else {
    ethUsdPriceFeedAddress = networkConfig[chainId]["ethUsdPriceFeed"]
}

Let me know.

[MrUchie]

@pacelliv MANNN you are awesome, thank you so much!!

[paulcoffee85]

Yes interesting, as Patrick put const ethUsdPRiceFeedAddress = ... , I never ran into that before, and first time. After that fix, now getting TypeError: Cannot read properties of undefined (reading 'length')

[pacelliv]

The value is undefined, check name of the keys in both helper-hardhat-config file and in the deploy script.