error in deploying in lesson 5

[khushbusandhu]

hey i am not able to understand what's going wrong with the code
here's the deploy.js

const ethers = require("ethers");

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

async function main() {
  // compile them in our code
  // compile them separately
  // http://127.0.0.1:7545
  const provider = new ethers.providers.JsonRpcProvider(
    "http://127.0.0.1:7545"
  );
  const wallet = new ethers.Wallet(
    "0x48f5aae5e9f0a7043757fb3b5a6f85d3df624dfcf11cfa903bf40ed6b83d9b5a",
    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);
  });

and here's the error

Deploying, please wait...
Error: could not detect network (event="noNetwork", code=NETWORK_ERROR, version=providers/5.4.0)
    at Logger.makeError (/home/khushbu/hardhat/ethers-simple-storage/node_modules/@ethersproject/logger/lib/index.js:187:21)
    at Logger.throwError (/home/khushbu/hardhat/ethers-simple-storage/node_modules/@ethersproject/logger/lib/index.js:196:20)
    at JsonRpcProvider.<anonymous> (/home/khushbu/hardhat/ethers-simple-storage/node_modules/@ethersproject/providers/lib/json-rpc-provider.js:490:54)
    at step (/home/khushbu/hardhat/ethers-simple-storage/node_modules/@ethersproject/providers/lib/json-rpc-provider.js:48:23)
    at Object.throw (/home/khushbu/hardhat/ethers-simple-storage/node_modules/@ethersproject/providers/lib/json-rpc-provider.js:29:53)
    at rejected (/home/khushbu/hardhat/ethers-simple-storage/node_modules/@ethersproject/providers/lib/json-rpc-provider.js:21:65)
    at processTicksAndRejections (node:internal/process/task_queues:96:5) {
  reason: 'could not detect network',
  code: 'NETWORK_ERROR',
  event: 'noNetwork'

[Codensity30]

Have you set up Ganache, and is it running in the background?

[Codensity30]

Is it showing the same error when the Ganache is running? If so try logging the value of abi and binary in the console to check if the file is being read properly.
Also, wait for deployment before logging the contract.

[khushbusandhu]

Yes abi and binary are being read properly

[khushbusandhu]

I opened the ganache and copied the private and left it running in background. Does it work the right way to run ganache ??

[Codensity30]

@khushbusandhu Just used your code and tried and it's working fine, try again and please share what error you're getting after trying this code. Also, Ganache is running in the background I've used Quickstart Ethereum.

import { ethers } from "ethers";
import { readFileSync } from "fs";

async function main() {
  const provider = new ethers.JsonRpcProvider("http://127.0.0.1:7545");
  const wallet = new ethers.Wallet(
    "0x99f76299c4184c4637fd0f041dfae8fe4735fc78339544ae2f89e0e0f597149a", //replace this with your private key
    provider
  );
  const abi = readFileSync("./bin/contracts/SimpleStorage.abi", "utf8"); //replace with the your abi location
  const binary = readFileSync("./bin/contracts/SimpleStorage.bin", "utf8"); //replace with the your binary location
  const contractFactory = new ethers.ContractFactory(abi, binary, wallet);
  console.log("Deploying, please wait...");
  const contract = await contractFactory.deploy();
  await contract.waitForDeployment();
  console.log(contract);
}

main()
  .then(() => process.exit(0))

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

Since I'm using typescript there are a few differences, also my ethers version is different, that's the reason I'm using ethers.JsonRpcrovider directly instead of ethers.providers.JsonRpcProvider, so please modify accordingly.

[khushbusandhu]

I have left the ganache part for now
As I have tried to deploy the contract on mainnet everything went fine. So I left the ganache part