Error: The constructor for contracts/voting.sol:voting has 1 parameters but 0 arguments were provided instead.

[Benrockiee]

When i deploy and tries to verify my contract, it deploys successfully but gives errors when trying to verify..
When i deployed, i converted to bytes32 as u can see in the deploy script and it deployed successfully but in the verify section, i had to add the hexadecimals(bytes32) to the args column but something is not right in the verify section

Please check it out

This is my Deploy script

const { ethers, network, run } = require("hardhat")
async function main() {
  const votingFactory = await ethers.getContractFactory("voting")
  console.log("deploying, please wait....")
  const voting = await votingFactory.deploy([
    "0x48656c6c6f20576f726c64210000000000000000000000000000000000000000",
  ])
  await voting.deployed()

  console.log(`contract deployed to :${voting.address}`)

  if (network.config.chainId === 4 && process.env.ETHERSCAN_API_KEY) {
    console.log("awaiting block confirmation")
    await voting.deployTransaction.wait(3)
    await verify(
      voting.address,
      "0x48656c6c6f20576f726c64210000000000000000000000000000000000000000"
    )
  }
}

const verify = async (contractAddress, bytes32) => {
  try {
    await run("verify:verify", {
      address: contractAddress,
      constructorArgument: bytes32,
    })
  } catch (e) {
    if (e.message.toLowerCase().includes("Already verified")) {
      console.log("Already verified")
    } else {
      console.log(e)
    }
  }
}

This is the Error it gives

deploying, please wait....
contract deployed to :0xe29250b0dD6765c935E188048266A3a6A10c854F
awaiting block confirmation
Nothing to compile
NomicLabsHardhatPluginError: The constructor for contracts/voting.sol:voting has 1 parameters
but 0 arguments were provided instead.
    at encodeArguments (/home/solid-rugged/hardhat-ballot-voter/node_modules/@nomiclabs/hardhat-etherscan/src/ABIEncoder.ts:29:13)
    at SimpleTaskDefinition.verifySubtask [as action] (/home/solid-rugged/hardhat-ballot-voter/node_modules/@nomiclabs/hardhat-etherscan/src/index.ts:283:34)
    at Environment._runTaskDefinition (/home/solid-rugged/hardhat-ballot-voter/node_modules/hardhat/src/internal/core/runtime-environment.ts:219:14)
    at Environment.run (/home/solid-rugged/hardhat-ballot-voter/node_modules/hardhat/src/internal/core/runtime-environment.ts:131:14)
    at verify (/home/solid-rugged/hardhat-ballot-voter/scripts/deploy.js:24:5)
    at main (/home/solid-rugged/hardhat-ballot-voter/scripts/deploy.js:15:5)

    Caused by: Error: types/values length mismatch (count={"types":1,"values":0}, value={"types":[{"name":"proposalNames","type":"bytes32[]","indexed":null,"components":null,"arrayLength":-1,"arrayChildren":{"name":null,"type":"bytes32","indexed":null,"components":null,"arrayLength":null,"arrayChildren":null,"baseType":"bytes32","_isParamType":true},"baseType":"array","_isParamType":true}],"values":[]}, code=INVALID_ARGUMENT, version=abi/5.6.4)
        at Logger.makeError (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/logger/src.ts/index.ts:261:28)
        at Logger.throwError (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/logger/src.ts/index.ts:273:20)
        at AbiCoder.encode (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/abi-coder.ts:101:20)
        at Interface._encodeParams (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/interface.ts:323:31)
        at Interface.encodeDeploy (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/interface.ts:327:21)
        at encodeArguments (/home/solid-rugged/hardhat-ballot-voter/node_modules/@nomiclabs/hardhat-etherscan/src/ABIEncoder.ts:22:8)
        at SimpleTaskDefinition.verifySubtask [as action] (/home/solid-rugged/hardhat-ballot-voter/node_modules/@nomiclabs/hardhat-etherscan/src/index.ts:283:34)
        at Environment._runTaskDefinition (/home/solid-rugged/hardhat-ballot-voter/node_modules/hardhat/src/internal/core/runtime-environment.ts:219:14)
        at Environment.run (/home/solid-rugged/hardhat-ballot-voter/node_modules/hardhat/src/internal/core/runtime-environment.ts:131:14)

[technophile-04]

There is mistake in constructorArgument its constructorArguments also you need tobpass parameters as array

const { ethers, network, run } = require("hardhat")
async function main() {
  const votingFactory = await ethers.getContractFactory("voting")
  console.log("deploying, please wait....")
  const voting = await votingFactory.deploy([
    "0x48656c6c6f20576f726c64210000000000000000000000000000000000000000",
  ])
  await voting.deployed()

  console.log(`contract deployed to :${voting.address}`)

  if (network.config.chainId === 4 && process.env.ETHERSCAN_API_KEY) {
    console.log("awaiting block confirmation")
    await voting.deployTransaction.wait(3)
    await verify(
      voting.address,
"0x48656c6c6f20576f726c64210000000000000000000000000000000000000000"

    )
  }
}

const verify = async (contractAddress, bytes32) => {
  try {
    await run("verify:verify", {
      address: contractAddress,
-  constructorArgument: bytes32,
+ constructorArguments:   [bytes32]    })
  } catch (e) {
    if (e.message.toLowerCase().includes("Already verified")) {
      console.log("Already verified")
    } else {
      console.log(e)
    }
  }
}

[Benrockiee]

@technophile-04 Look at the new error

Nothing to compile
NomicLabsHardhatPluginError: Value 0x48656c6c6f20576f726c64210000000000000000000000000000000000000000 cannot be encoded for the parameter proposalNames.
Encoder error reason: expected array value
    at encodeArguments (/home/solid-rugged/hardhat-ballot-voter/node_modules/@nomiclabs/hardhat-etherscan/src/ABIEncoder.ts:34:13)
    at SimpleTaskDefinition.verifySubtask [as action] (/home/solid-rugged/hardhat-ballot-voter/node_modules/@nomiclabs/hardhat-etherscan/src/index.ts:283:34)
    at Environment._runTaskDefinition (/home/solid-rugged/hardhat-ballot-voter/node_modules/hardhat/src/internal/core/runtime-environment.ts:219:14)
    at Environment.run (/home/solid-rugged/hardhat-ballot-voter/node_modules/hardhat/src/internal/core/runtime-environment.ts:131:14)
    at verify (/home/solid-rugged/hardhat-ballot-voter/scripts/deploy.js:24:5)
    at main (/home/solid-rugged/hardhat-ballot-voter/scripts/deploy.js:15:5)

    Caused by: Error: expected array value (argument="proposalNames", value="0x48656c6c6f20576f726c64210000000000000000000000000000000000000000", code=INVALID_ARGUMENT, version=abi/5.6.4)
        at Logger.makeError (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/logger/src.ts/index.ts:261:28)
        at Logger.throwError (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/logger/src.ts/index.ts:273:20)
        at Logger.throwArgumentError (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/logger/src.ts/index.ts:277:21)
        at ArrayCoder.Coder._throwError (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/coders/abstract-coder.ts:68:16)
        at ArrayCoder.encode (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/coders/array.ts:195:18)
        at /home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/coders/array.ts:62:19
        at Array.forEach (<anonymous>)
        at pack (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/coders/array.ts:54:12)
        at TupleCoder.encode (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/coders/tuple.ts:54:20)
        at AbiCoder.encode (/home/solid-rugged/hardhat-ballot-voter/node_modules/@ethersproject/abi/src.ts/abi-coder.ts:111:15)
Done in 61.55s.

[technophile-04]

Could you please share you contract code...It would be really great if you make a github repo and share

[Benrockiee]

@technophile-04 Here

https://github.com/Benrockiee/Voting