Lesson 5 node.js Error

[jting0499]

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

async function main() {
  //http://127.0.0.1:7545
  const provider = new ethers.providers.JsonRpcProvider(
    "http://127.0.0.1:7545"
  );
  const wallet = new ethers.Wallet(
    "0x430d309BD0c4a46E0Af0AEEE1D7F9E18D280Be7C",
    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(); //telling to stop here, wait for the contract to deploy
  console.log(contract);
}

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

While trying to connect to Ganache and run on VScode just now, I received the following error in the terminal:

Error: invalid private key (argument="privateKey", value="[[ REDACTED ]]", code=INVALID_ARGUMENT, version=signing-key/5.6.2)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:981:32) {
  reason: 'invalid private key',
  code: 'INVALID_ARGUMENT',
  argument: 'privateKey',
  value: '[[ REDACTED ]]'

I checked my code but didn't seem to have saw anything wrong. Can anyone tell me how to solve this problem? I'm using the Mac BigSur system
Youtube video: https://www.youtube.com/watch?v=gyMwXuJrbJQ&t=25088s&ab_channel=freeCodeCamp.org
Encounter problem at time code: around 7:05:00

[othaime-en]

Did you add an address or a private key when connecting to the wallet?

[jting0499]

Sorry there's a typo in my previous response. I was trying to say "How should I check if I'm using the private key to connect"?
in other words, what are my private keys in this code? / where should I get them?
Excuse me that I'm a super beginner in this course so I'm still trying to understand a lot of things.. thank you :)

[othaime-en]

Okay when you quickstart ganache you see a list of addresses in the main page, on the far right you'll see 🔑 icons. click on any one of those and copy the long string of digits under private key.
The address is the one starting with 0x don't copy that, copy the longer string of digits.

[othaime-en]

[jting0499]

It worked! Thank you so much

[othaime-en]

mark as answered and good luck!

[krakxn]

Try this—the green one—and let me know:

-const contract = await contractFactory.deploy(); //telling to stop here, wait for the contract to deploy
-console.log(contract);
+const contract = await contractFactory.deploy(); //telling to stop here, wait for the contract to deploy
+await contract.deployed();  
+console.log(contract);

[adityabhattad2021]

Here:

  const wallet = new ethers.Wallet(
    "0x430d309BD0c4a46E0Af0AEEE1D7F9E18D280Be7C",
    provider
  );

You have added public key and NOT private key
check that private key is larger in length than public key and add it.

  const wallet = new ethers.Wallet(
    "<add private key here>",
    provider
  );