当我使用 ETH 部署 NFT 时出现错误

Question

我是 NFT 新手，我正在尝试创建测试 NFT，当我尝试部署该 NFT 时，我收到此错误，insufficient funds for intrinsic transaction cost即使我的帐户中有 1 ETH 余额，但我已附加了它的完整代码，可以有人请帮助我，如何解决这个问题？MyNFT.sol

//Contract based on [https://docs.openzeppelin.com/contracts/3.x/erc721](https://docs.openzeppelin.com/contracts/3.x/erc721)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";

contract MyNFT is ERC721URIStorage, Ownable {   
    using Counters for Counters.Counter;
    Counters.Counter private _tokenIds;

    constructor() ERC721("MyNFT", "NFT") {}

    function mintNFT(address recipient, string memory tokenURI)
        public onlyOwner
        returns (uint256)
    {
        _tokenIds.increment();

        uint256 newItemId = _tokenIds.current();
        _mint(recipient, newItemId);
        _setTokenURI(newItemId, tokenURI);

        return newItemId;
    }
}

安全帽.config.js

/**

* @type import('hardhat/config').HardhatUserConfig

*/

require('dotenv').config();
require("@nomiclabs/hardhat-ethers");
const { API_URL, PRIVATE_KEY } = process.env;
//console.log(PRIVATE_KEY);
module.exports = {
   solidity: "0.8.1",
   defaultNetwork: "ropsten",
   networks: {
      hardhat: {},
      ropsten: {
         url: API_URL,
         accounts: [`0x${PRIVATE_KEY}`]
      }
   },
}

部署.js

async function main() {
    const MyNFT = await ethers.getContractFactory("MyNFT")
  
    // Start deployment, returning a promise that resolves to a contract object
    const myNFT = await MyNFT.deploy()
    await myNFT.deployed()      
    console.log("Contract deployed to address:", myNFT.address)
  }
  
  main()
    .then(() => process.exit(0))
    .catch((error) => {
      console.error(error)
      process.exit(1)
    })

    

Answer 1

这个错误很明显。您没有足够的资金。这是您获取帐户信息的方式：

const { API_URL, PRIVATE_KEY } = process.env;

我在解构 webpack 时遇到了问题process.env。尝试这个

// ASSUMING you pass correct private key here
const PRIVATE_KEY  = process.env.PRIVATE_KEY;

console.log 私钥。

如果它没有得到解决，这意味着您没有传递正确的 PRIVATE_KEY。