Can't connect to Ganache

[TobiasAboh]

I'm getting this error when I run deploy.js to deploy the contract on Ganache

JsonRpcProvider failed to detect network and cannot start up; retry in 1s (perhaps the URL is wrong or the node is not started)
Error: connect ECONNREFUSED 127.0.0.1:7545
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1606:16) {
  errno: -111,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 7545
}

And this is the deploy code

const ethers = require("ethers");
const fs = require("fs-extra");

async function main() {
  //HTTP://127.0.0.1:7545
  const provider = new ethers.JsonRpcProvider("HTTP://127.0.0.1:7545");
  signer = await provider.getSigner();
  const wallet = new ethers.Wallet(
    "0xfdd6e3b6cb0ec755bf8a5df064d29071f83de936ceb78243a914526d67440f44",
    provider
  );
  const abi = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.abi", "utf8");
  const binary = fs.readFileSync(
    "./SimpleStorage_sol_SimpleStorage.bin",
    "utf8"
  );
  const contractFactory = new ethers.ContractFactory(abi, binary, wallet);
  console.log("Deploying please wait");
  const contract = await contractFactory.deploy();
  console.log(contract);
}

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

[HarigovindM-G]

Ensure you have entered the URL correctly

const provider = new ethers.JsonRpcProvider("http://127.0.0.1:7545")

Also make sure using the Ganache UI that if its running at port 7545 itself

[algoWiz007]

@TobiasAboh, you will have to run ganache from your localhost.

You will have to install ganache from your localhost. Running these two commands will run ganache network from your localhost.

npm install ganache --global
ganache

Also, you can use ganache pacakge from your script for getting the ganache provider.

const ganache = require("ganache");
const provider = new ethers.providers.Web3Provider(ganache.provider());

[TobiasAboh]

Thanks It works with the command line but how do I make it work with the GUI?

[algoWiz007]

You can download the desktop GUI application and have a try.
This is the link for that : https://archive.trufflesuite.com/ganache/

[algoWiz007]

You can mark it as answered if it worked. @TobiasAboh

[Mihir-pp]

Thanks it works with command line. It happened maybe because I am running on WSL environment and ganache GUI is installed on windows.