Node.js 节点的智能协定部署不工作

我有这样的问题。我是区块链开发新手，我使用solidity创建了一个智能合约。为了编译和部署它，我创建了compile.js和deploy.js文件

这是我的档案

pragma solidity 0.4.20;

contract Election {
    // Model a Candidate
    struct Candidate {
        uint id;
        string name;
        uint voteCount;
    }

    // Store accounts that have voted
    mapping(address => bool) public voters;
    // Store Candidates
    // Fetch Candidate
    mapping(uint => Candidate) public candidates;
    // Store Candidates Count
    uint public candidatesCount;

    // voted event
    event votedEvent (
        uint indexed _candidateId
    );

    function Election () public {
        addCandidate("Candidate 1");
        addCandidate("Candidate 2");
    }

    function addCandidate (string _name) private {
        candidatesCount ++;
        candidates[candidatesCount] = Candidate(candidatesCount, _name, 0);
    }

    function vote (uint _candidateId) public {
        // require that they haven't voted before
        require(!voters[msg.sender]);

        // require a valid candidate
        require(_candidateId > 0 && _candidateId <= candidatesCount);

        // record that voter has voted
        voters[msg.sender] = true;

        // update candidate vote Count
        candidates[_candidateId].voteCount ++;

        // trigger voted event
        votedEvent(_candidateId);
    }
}

这是我的deploy.js文件

const HDWalletProvider = require('truffle-hdwallet-provider');
const Web3 = require('web3');
const { interface , bytecode } = require('./compile');

const provider = new HDWalletProvider(
    'retire embark gravity flight also ceiling dinr wine example slender armor rate',
    'https://rinkeby.infura.io/v3/mykey'
);

const web3 = new Web3(provider);

const deploy = async () => {
const accounts = await web3.eth.getAccounts();

console.log('Attempting to deploy from account',accounts[0]);
const result = await new web3.eth.Contract(JSON.parse(interface))
.deploy({data:bytecode})
.send({gas:'1000000',from :accounts[0]});

console.log( interface );
console.log( 'contract deploy to', result.options.address);

};

deploy();

当我在命令提示符下点击node deploy.js时，会出现如下错误

TypeError: Cannot destructure property `interface` of 'undefined' or 'null'.
    at Object.<anonymous> (C:\Users\tharindusa\Desktop\election\deploy.js:3:34)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)
    at startup (bootstrap_node.js:191:16)
    at bootstrap_node.js:612:3

---

有人能帮我解决这个问题吗？我搜索了很多，但找不到合适的解决方案。谢谢。

我也犯了同样的错误。我使用了solc.compilesource，1.Adam建议的错误，并在合同中发现了一个拼写错误。你应该试试。

你也可以发布你的election.sol文件吗？看起来问题可能出在一个旁注中，我建议您开始使用Truffle framework和Infura。@Paul我已经用Election.sol文件更新了问题。我猜您遇到了编译错误，但没有意识到。契约本身没有问题，但您可能试图使用不匹配的solc编译器版本。不要直接导出编译结果，而是执行solc.compilesource，1.errors的调试输出。@AdamKipnis是的，存在版本不匹配错误。谢谢

TypeError: Cannot destructure property `interface` of 'undefined' or 'null'.
    at Object.<anonymous> (C:\Users\tharindusa\Desktop\election\deploy.js:3:34)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)
    at startup (bootstrap_node.js:191:16)
    at bootstrap_node.js:612:3