Getting an error when trying to execute the deploy script

Smart Contracts
1

Hi everyone,

I'm getting a Transaction reverted without a reason string when I try to execute the deploy script.

Smart Contract:

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";

contract DecentralizedEVoting is Ownable {

struct Candidate {
uint256 Id;
bytes32 Name;
uint256 Votes;
}

bool hasEnded;
mapping(address => bool) public hasVoted;
Candidate public candidates;

constructor(bytes32 memory _candidateNames) payable {
for(uint256 i = 0; i < _candidateNames.length; i++) {
candidates[i] = Candidate(i, _candidateNames[i], 0);
}
}

function viewCandidates() public view returns(Candidate memory){
return candidates;
}

function vote(uint256 _ID) public {
require(!hasEnded);
require(!hasVoted[msg.sender], "This address has been voted before." );
hasVoted[msg.sender] == true;
candidates[_ID].Votes++;
}

function endElection() public onlyOwner {
hasEnded = true;
}

}

deploy.js

async function main() {

const DecentralizedEVoting = await ethers.getContractFactory("DecentralizedEVoting");
const decentralizedEVoting = await DecentralizedEVoting.deploy(["0x61686d6574000000000000000000000000000000000000000000000000000000", "0x6d65686d65740000000000000000000000000000000000000000000000000000"]); // [ahmet, mehmet]

await decentralizedEVoting.deployed();

console.log("DecentralizedEVoting contract deployed to:", decentralizedEVoting.address);
}

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

Getting this error when trying to run the script:

web3_clientVersion
eth_chainId
eth_accounts
eth_blockNumber
eth_chainId (2)
eth_estimateGas
Contract deployment:
From: 0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266
Value: 0 ETH

Error: Transaction reverted without a reason string
at .constructor (unknown)
at EthModule._estimateGasAction (/home/user/dev/decentralized-e-voting/node_modules/hardhat/src/internal/hardhat-network/provider/modules/eth.ts:425:7)
at HardhatNetworkProvider._sendWithLogging (/home/user/dev/decentralized-e-voting/node_modules/hardhat/src/internal/hardhat-network/provider/provider.ts:139:22)
at HardhatNetworkProvider.request (/home/user/dev/decentralized-e-voting/node_modules/hardhat/src/internal/hardhat-network/provider/provider.ts:116:18)
at JsonRpcHandler._handleRequest (/home/user/dev/decentralized-e-voting/node_modules/hardhat/src/internal/hardhat-network/jsonrpc/handler.ts:188:20)
at JsonRpcHandler._handleSingleRequest (/home/user/dev/decentralized-e-voting/node_modules/hardhat/src/internal/hardhat-network/jsonrpc/handler.ts:167:17)
at Server.JsonRpcHandler.handleHttp (/home/user/dev/decentralized-e-voting/node_modules/hardhat/src/internal/hardhat-network/jsonrpc/handler.ts:52:21)

Thanks in advance, have a nice day :slight_smile:

2

Have you tried to debug this? How?

Try removing the for loop and see what happens.