PROSAGA码农传奇-以太坊-在以太坊中部署智能合约时如何解决错误？

在以太坊中部署智能合约时如何解决错误？

作者: 大魔王
发布时间: 2024-06-20 10:26:57 (22天前)
转自：

<div class =“post-text”itemprop =“text”>
  <P>
    请务必阅读
    <a href="https://github.com/ethereum/solc-js" rel="nofollow noreferrer">
      solc docs
    </A>
     对于solc v0.5.0 +，以确保您正在调整Solidity编译器的更改。
  </p>
  <P>
    这样的东西应该与最新版本的solc兼容：
  </p>
   <pre>
    <code>
      // Note: You should be defining your contract sources as objects now.
// Note: You must also provide the compiler output selection as well.
const compilerInput = {
    language: "Solidity",
    sources: {
        'Voter': { content: fs.readFileSync('Voter.sol', 'utf8') }
    },
    settings: {
      outputSelection: {
        "*": {
          "*": [ "abi", "evm.bytecode" ]
        }
      }
    }
};

console.log('Compiling the contract')
// Note: You have to pass the input in with JSON.stringify now.
const compiledContract = JSON.parse(solc.compile(JSON.stringify(compilerInput)));

if(compiledContract.errors) {
    compiledContract.errors.forEach(err => console.log(err.formattedMessage));
}

// Note: This changed slightly since I'm using JSON.parse above.
const contract = compiledContract.contracts['Voter'].Voter; // Voter contract from Voter file.

// Note: This is now called 'abi' and not 'interface'
const abi = contract.abi;
fs.writeFileSync('abi.json', JSON.stringify(abi, null, 2));

</code>
  </pre>
  <P>
    你还需要更新你的
     <code>
      deployContract
    </code>
     函数与solc v0.5.0 +同步
  </p>
   <pre>
    <code>
      async function deployContract(web3, contract, sender) {
    let Voter = new web3.eth.Contract(JSON.parse(JSON.stringify(abi)));
    let bytecode = '0x' + contract.evm.bytecode.object;
    let gasEstimate = await web3.eth.estimateGas({data: bytecode});

// The rest should work fine...
}

</code>
  </pre>
</DIV>