TypeError: miner.startMining is not a function

[king841997]

import {Miner} from "web3-eth-miner";

const options =  {
        defaultAccount: "0x78dB3e2129D58685444989dD9682DDDC70dd3C82",
        defaultBlock: 'latest',
        defaultGas: 3000000000,
        defaultGasPrice: 3000000,
        transactionBlockTimeout: 50,
        transactionConfirmationBlocks: 24,
        transactionPollingTimeout: 480,
      }
      const miner = new Miner(web3.givenProvider, null,options);
        await miner.startMining(2).then(console.log)

It still throws an error TypeError: miner.startMining is not a function

[nivida]

Thanks for opening this issue! Which version of Web3 are you using? and could you provide the whole script?

[sulenn]

the same question:
the Web3's version：web3@1.0.0-beta.55
the web3-eth-miner's version：@1.0.0-beta.55
geth version：Geth/v1.8.27-stable/linux-amd64/go1.12

script:

const Web3 = require("web3");
const net = require('net');
const {Miner} = require("web3-eth-miner")

const web3 = new Web3(new Web3.providers.IpcProvider('/home/qiubing/桌面/chain_creator_nodejs/sulenn5/data/geth.ipc', net));
// 连接 miner 服务
const miner = new Miner(new Web3.providers.IpcProvider('/home/qiubing/桌面/chain_creator_nodejs/sulenn5/data/geth.ipc', net))

web3.eth.getAccounts()
    .then(console.log("success"))
    .catch(err=>{
        console.log("err！")
        process.exit()
    })

miner.startMining("1").then(console.log)

result：

thank you!

[king841997]

Thanks for opening this issue! Which version of Web3 are you using? and could you provide the whole script?

I was using "web3": "^1.0.0-beta.37", and had installed web3-eth-miner from npm package.

I tried upgrading to the version "web3": "^1.0.0-beta.55", still same issue..
here is the whole script

import LandManagmentContract from "./contracts/LandManagment.json";
import getWeb3 from "./utils/getWeb3";
import {Miner} from "web3-eth-miner";

import Web3 from "web3";

import "./App.css";

class App extends Component {
  state = { web3: null,
            accounts: null,
            contract: null };

  componentDidMount = async () => {
    try {
      // Get network provider and web3 instance.
      const web3 = await getWeb3();

      // Use web3 to get the user's accounts.
      const accounts = await web3.eth.getAccounts();

      // Get the contract instance.
      const networkId = await web3.eth.net.getId();
      const deployedNetwork = LandManagmentContract.networks[networkId];
      const instance = new web3.eth.Contract(
        LandManagmentContract.abi,
        deployedNetwork && deployedNetwork.address,
      );

      console.log(web3.givenProvider)
      console.log(web3.eth.givenProvider)
      console.log(accounts)

      const provider = new Web3.providers.HttpProvider(
        "http://127.0.0.1:8545"
      );
      const options =  {
        defaultAccount: "0x78dB3e2129D58685444989dD9682DDDC70dd3C82",
        defaultBlock: 'latest',
        defaultGas: 3000000000,
        defaultGasPrice: 3000000,
        transactionBlockTimeout: 50,
        transactionConfirmationBlocks: 24,
        transactionPollingTimeout: 480,
      }
      const miner = new Miner(provider, null,options);

      
      console.log(accounts)
      console.log(miner)
      
      console.log(await miner.setEtherbase("0x78dB3e2129D58685444989dD9682DDDC70dd3C82"))
      //***************************** */
      //miner.setEtherBase returns TRUE
      //********************************* */

        await miner.startMining(1)
      
      this.setState({ web3, accounts, contract: instance });
    } catch (error) {
      // Catch any errors for any of the above operations.
      alert(
        `Failed to load web3, accounts, or contract. Check console for details.`,
      );
      console.error(error);
    }
  };

[baumstern]

I also got same error.

• version info
  web3-eth-miner: 1.0.0-beta.55