Lesson 5: TypeError: Cannot read properties of undefined (reading 'toHexString')

[MockingJay-Yu]

const ethers = require("ethers");
const fs = require("fs-extra");
require("dotenv").config;

async function main() {
  const provider = new ethers.providers.JsonRpcProvider(
    "http://127.0.0.1:7545"
  );
  console.log(process.env.PRIVATE_KEY);
  const wallet = new ethers.Wallet(process.env.PRIVATE_KEY, provider);

PRIVATE_KEY= 0xd0eff7acde16753abc0c6c03ef51eeabe7fc6a60525e4d1ba7e343f18c5b339f

[TatyOko28]

const ethers = require("ethers");
const fs = require("fs-extra");
require("dotenv").config(); // Ensure .env variables are loaded

async function main() {
  const provider = new ethers.providers.JsonRpcProvider("http://127.0.0.1:7545");

  const privateKey = process.env.PRIVATE_KEY;
  if (!privateKey) {
    throw new Error("PRIVATE_KEY is not defined in .env file");
  }

  console.log("Private Key:", privateKey);
  
  const wallet = new ethers.Wallet(privateKey, provider);

  console.log("Wallet Address:", wallet.address);
}

main().catch((error) => {
  console.error(error);
});

Summary of Fixes
Call .config() properly: require("dotenv").config();
Ensure .env file is correctly formatted
Verify that PRIVATE_KEY is not undefined
Check wallet initialization with a proper key
Handle errors properly and log outputs to debug