Hardhat lesson 6 Contract Deployment bug (Incomplete verification)

[roychaadit]

I am getting an error when running the following code

// imports
const { ethers, run, network } = require("hardhat")

// async main
async function main() {
    const SimpleStorageFactory = await ethers.getContractFactory(
        "SimpleStorage",
    )
    console.log("Deploying contract...")
    const simpleStorage = await SimpleStorageFactory.deploy()
    await simpleStorage.deploymentTransaction().wait()
    console.log(`Deployed contract to: ${simpleStorage.target}`)
    // console.log(network.config)

    if (network.config.chainId === 11155111 && process.env.ETHERSCAN_API_KEY) {
        console.log("Waiting for block confirmations...")
        await simpleStorage.deploymentTransaction().wait(6)
        await verify(simpleStorage.target, [])
    }

    const currentValue = await simpleStorage.retrieve()
    console.log(`Current Value is: ${currentValue}`)

    const transactionResponse = await simpleStorage.store(21)
    await transactionResponse.wait(1)
    const updatedValue = await simpleStorage.retrieve()
    console.log(`Updated value is: ${updatedValue}`)
}

// async function verify(contractAddress, args) {
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)
        }
    }
}

// main
main()
    .then(() => process.exit(0))
    .catch((error) => {
        console.error(error)
        process.exit(1)
    })

The error is as follows:

yarn run v1.22.19
$ /Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/.bin/hardhat run scripts/deploy.js --network sepolia
Compiled 1 Solidity file successfully
Deploying contract...
Deployed contract to: 0xcfff5b04DC7d25f27920C83256C6E258170B221b
Waiting for block confirmations...
Verifying contract...
ContractVerificationMissingBytecodeError: Failed to send contract verification request.
Endpoint URL: https://api-sepolia.etherscan.io/api
Reason: The Etherscan API responded that the address 0xcfff5b04DC7d25f27920C83256C6E258170B221b does not have bytecode.
This can happen if the contract was recently deployed and this fact hasn't propagated to the backend yet.
Try waiting for a minute before verifying your contract. If you are invoking this from a script,
try to wait for five confirmations of your contract deployment transaction before running the verification subtask.
    at Etherscan.verify (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/@nomicfoundation/hardhat-verify/src/etherscan.ts:108:13)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at SimpleTaskDefinition.action (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/@nomicfoundation/hardhat-verify/src/index.ts:468:33)
    at Environment._runTaskDefinition (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:333:14)
aaditroychowdhury@Aadits-MacBook-Air hardhat-simple-storage-fcc % yarn hardhat run scripts/deploy.js --network sepolia
yarn run v1.22.19
$ /Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/.bin/hardhat run scripts/deploy.js --network sepolia
Compiled 1 Solidity file successfully
Deploying contract...
Deployed contract to: 0x45C7fC34231acFd40560793a35acb40d925caBB6
Waiting for block confirmations...
Verifying contract...
ContractVerificationMissingBytecodeError: Failed to send contract verification request.
Endpoint URL: https://api-sepolia.etherscan.io/api
Reason: The Etherscan API responded that the address 0x45C7fC34231acFd40560793a35acb40d925caBB6 does not have bytecode.
This can happen if the contract was recently deployed and this fact hasn't propagated to the backend yet.
Try waiting for a minute before verifying your contract. If you are invoking this from a script,
try to wait for five confirmations of your contract deployment transaction before running the verification subtask.
    at Etherscan.verify (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/@nomicfoundation/hardhat-verify/src/etherscan.ts:108:13)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at SimpleTaskDefinition.action (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/@nomicfoundation/hardhat-verify/src/index.ts:468:33)
    at Environment._runTaskDefinition (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:333:14)
    at Environment.run (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:166:14)
    at SimpleTaskDefinition.action (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/@nomicfoundation/hardhat-verify/src/index.ts:295:9)
    at Environment._runTaskDefinition (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:333:14)
    at Environment.run (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:166:14)
    at SimpleTaskDefinition.action (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/@nomicfoundation/hardhat-verify/src/index.ts:544:7)
    at Environment._runTaskDefinition (/Users/aaditroychowdhury/Documents/Blockchain/FreeCodeCamp/hardhat-simple-storage-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:333:14)
Current Value is: 0
Updated value is: 21
✨  Done in 45.40s.

Why is the verification not getting completed?

[alfaqi]

see here, maybe it helps (Hardhat Verify contract issue) #5773