Lesson 9: Error while verification of Raffle Contract

[haverstein]

NomicLabsHardhatPluginError: The contract verification failed.
Reason: Fail - Unable to verify
    at SimpleTaskDefinition.verifySubtask [as action] (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\node_modules\@nomiclabs\hardhat-etherscan\src\index.ts:350:9)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Environment._runTaskDefinition (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\node_modules\hardhat\src\internal\core\runtime-environment.ts:219:14)
    at Environment.run (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\node_modules\hardhat\src\internal\core\runtime-environment.ts:131:14)
    at verify (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\utils\verify.js:9:9)
    at Object.module.exports [as func] (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\deploy\01-deploy-raffle.js:47:9)
    at DeploymentsManager.executeDeployScripts (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1219:22)
    at DeploymentsManager.runDeploy (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\node_modules\hardhat-deploy\src\index.ts:438:5)
    at Environment._runTaskDefinition (C:\Users\Admin\Desktop\code\BT\Course\Hardhat\hardhat-smartcontract-rafflelottery\node_modules\hardhat\src\internal\core\runtime-environment.ts:219:14)

This message is shown when I use the command yarn hardhat deploy --network rinkeby

The deploy/01-deploy-raffle.js is

    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId
    let vrfCoordinator, subscriptionId
    if (developmentChains.includes(network.name)) {
        //await deployments.fixture(["VRFCoordinatorV2Mock"])
        const vrfAddress = await ethers.getContract("VRFCoordinatorV2Mock")
        vrfCoordinator = vrfAddress.address
        const transactionResponse = await vrfAddress.createSubscription()
        const transactionReceipt = await transactionResponse.wait(1)
        subscriptionId = transactionReceipt.events[0].args.subId
        await vrfAddress.fundSubscription(subscriptionId, VRF_SUB_FUND_AMOUNT)
    } else {
        vrfCoordinator = networkConfig[chainId]["vrfCoordinatorV2"]
        subscriptionId = networkConfig[chainId]["subscriptionId"]
    }
    const entranceFee = networkConfig[chainId]["entranceFee"]
    const gasLane = networkConfig[chainId]["gasLane"]
    const callbackGasLimit = networkConfig[chainId]["callbackGasLimit"]
    const interval = networkConfig[chainId]["interval"]
    const arguments = [
        vrfCoordinator,
        entranceFee,
        gasLane,
        subscriptionId,
        callbackGasLimit,
        interval,
    ]
    const raffle = await deploy("Raffle", {
        from: deployer,
        args: arguments,
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    })
     if (!developmentChains.includes(network.name) && process.env.ETHERSCAN_API_KEY) {
         log("Verifying...")
         await verify(raffle.address, arguments)
     }
    log("-------------------------------------------------------")
}
module.exports.tags = ["all", "raffle"]

And this is the utils/verify.js:

const verify = async (contractAddress, args) => {
    console.log("Verifying contract...")
    try {
        await run("verify:verify", {
            address: contractAddress,
            constructorArguments: args,
        })
    } catch (e) {
        if (e.message.toLowerCase().includes("already verified")) {
            console.log("Already verified!")
        }
        // else {
        //     console.log(e)
        // }
    }
}

module.exports = {
    verify,
}

Can someone tell me what is the issue here and how to solve it?
Thank you in advance

[krakxn]

Add this in your deploy-raffle script

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

[krakxn]

Try Goerli. If that does not work, push to GitHub and I will look into it

[haverstein]

I tried goerli but it had the same issue there as well.
This is the repo:
https://github.com/haverstein/hardhat-raffle-contract

[zeitseeing]

I can't access that repo anymore. Did you add this line?

const { verify } = require("../utils/verify")

I think in the video this line is referencing the wrong path.

[haverstein]

Yeah, this line is there in the code and it is referencing the right file.
Also, now I have made the repo public , so there may not be any problem accessing the repo, here is the link:

https://github.com/haverstein/hardhat-raffle-contract

[krakxn]

@haverstein The logic of the code seems correct, I made a slight correction: not sure if it will fix the problem, but it now waits for txn receipt until the txn has completely gone through (i.e. mined)

[othaime-en]

Hey @haverstein try and change

etherscan: {
    apiKey: process.env.ETHERSCAN_KEY
}

into

etherscan: {
    apiKey: {
        rinkeby:"ETHERSCAN API KEY HERE",
    }
}

and see if it makes a difference.

[othaime-en]

This error is related to node, not hardhat. Try installing the nomiclabs etherscan on a traditional terminal like Powershell outside vscode.

[haverstein]

The installation was successful in the Powershell

[othaime-en]

Great. Have you tried verifying the contract again?

[haverstein]

Yeah, the issue persists

[haverstein]

I tried to manually do the verification process using the standard-json system but I still get an error
https://goerli.etherscan.io/verifyContract-solc-json?a=0xC03B36dc270635239494e76f97Cf041439E3b177&c=v0.8.7%2bcommit.e28d00a7&lictype=3