Truffle 部署错误：PollingBlockTracker

Question

我尝试通过Polygon Amoy和Sepolia部署合约，两者都产生相同的错误。我已经推出了 Ganache，其

MNEMONIC

与 MetaMask 钱包以及

.secret

文件中使用的钱包相同。

MetaMask 中使用的网络也与

truffle-config.js

中使用的网络相同

Compiling your contracts...
===========================
⠇ Fetching solc version list from solc-bin. Attempt #1
/home/ahmed/PycharmProjects/payment-dapp/node_modules/eth-block-tracker/src/polling.js:51
        const newErr = new Error(`PollingBlockTracker - encountered an error while attempting to update latest block:\n${err.stack}`)
                       ^
Error: PollingBlockTracker - encountered an error while attempting to update latest block:
undefined
    at PollingBlockTracker._performSync (/home/ahmed/PycharmProjects/payment-dapp/node_modules/eth-block-tracker/src/polling.js:51:24)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)

truffle-config.js

const HDWalletProvider = require("@truffle/hdwallet-provider");
const fs = require("fs");
const mnemonic = fs.readFileSync(".secret").toString().trim();
require('dotenv').config()

module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 7545,
      network_id: "*",
    },
    sepolia: {
      provider: () =>
        new HDWalletProvider(
          mnemonic,
          `https://sepolia.infura.io/v3/`
        ),
      network_id: 11155111,
      confirmations: 2,
      gas: 5500000,
      gasPrice: 45000000,
      networkCheckTimeout: 10000000,
      timeoutBlocks: 200,
      skipDryRun: true,
      chainId: 11155111,
    },
  },
  contracts_directory: "./contracts",
  contracts_build_directory: "./abis",
  compilers: {
    solc: {
      version: "^0.8.19",
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },

  db: {
    enabled: false,
  },
};

Answer 1

当您的配置不正确时，会出现

PollingBlockTracker

错误。我认为错误很可能就在这里

https://sepolia.infura.io/v3/

。 从 infura 网络端点您应该添加 API 密钥

https://sepolia.infura.io/v3/<API-KEY>

此外，您可能需要将

host

更改为此

  host: "127.0.0.1",

而不是“本地主机”