Lesson 5: ReferenceError

[Sakana-xc]

Hi guys, I am at Lesson 5, 07:14, when I run my code I always get this ReferenceError: transactionReceipt is not defined at main (/Users/cong1/Desktop/hh-fcc/ethers-simple-storage/deploy.js:25:15) at processTicksAndRejections (node:internal/process/task_queues:96:5)So far It works fine with this error, should I pay attention to that?

Below is my code:

const ethers = require("ethers");
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(
    "c5c41008fb6d9d2e62e78b25d42be7b2ba1924e62d94fc42036fe06787f81a7d",
    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();
  const deploymentReceipt = await contract.deployTransaction.wait(1);
  console.log("Here is the deployment transaction: ");
  console.log(contract.deployTransaction);
  console.log("Here is the transaction receipt: ");
  console.log(transactionReceipt);
}

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

Thanks guys.

[krakxn]

The problem is in the last console log, that is, console.log(transactionReceipt)
You should replace it with:

console.log(deploymentReceipt)

Let me know if this helps!

[Sakana-xc]

transactionReceipt

Hi An, thanks for the help! I actually copied the code into a new file, tried both console.log(transactionReceipt), console.log(deploymentReceipt), now it returns the same error ReferenceError: Process is not defined at /Users/cong1/Desktop/hh-fcc/ethers-simple-storage/deploy.js:40:23 at processTicksAndRejections (node:internal/process/task_queues:96:5)
It looks like I didn't put the file into the right place but I am not quite sure.

[krakxn]

Can you paste the entire code here after my changes, cheers.

[Sakana-xc]

Can you paste the entire code here after my changes, cheers.

Hi An, thanks! Here is the code blow

const ethers = require("ethers");
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(
    "c5c41008fb6d9d2e62e78b25d42be7b2ba1924e62d94fc42036fe06787f81a7d",
    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();
  const deploymentReceipt = await contract.deployTransaction.wait(1);
  console.log("Here is the deployment transaction: ");
  console.log(contract.deployTransaction);
  console.log("Here is the transaction receipt: ");
  console.log(deploymentReceipt);
}

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

Basically I started a new file named deploy1.js, then pasted the code above, it works fine but in the end of the terminal it says chainId: 1337, v: 2710, r: '0xb48b29c3f12a42d4c5cb7cb5c3890f472add801472c3e04ae44e662ccebb4a68', s: '0x54d4532dae8686b1570d2149daed2a0f3907930d5bed7d3b0b01e1baf4c2890e', from: '0xA241943e0681188032e10121C0223204aC503a6C', hash: '0x463d1af10fc14e678b5ea8aacb6467072f1366619e6ed2e872c98534b008eec1', type: null, confirmations: 0, wait: [Function (anonymous)] } ReferenceError: Process is not defined at /Users/cong1/Desktop/hh-fcc/ethers-simple-storage/deploy.js:40:23 at processTicksAndRejections (node:internal/process/task_queues:96:5)

[alymurtazamemon]

@SakanaSachi Process.exit(0) here p is capital it show be small.

[Sakana-xc]

OMG problem solved. Thank you so much! Now I understand it's because the two "process" doesn't match. The error refering to the actual "process" , I thought it was somethingelse.

[LT-TMC]

also fixed for me, i guess this is how we learn :D thanks

[LT-TMC]

id just like to add to my response,

the code revision you suggested worked perfectly until It was time to updateFavoriteNumber, then It came to my attention that every time FavoriteNumber was updated, a contract is also created so I reverted the code and I still have a new contract creation and a contract call,

I'm not sure if this is the correct place to explain this but I just wanted to revise my comment for the next soul to come along

const contractFactory = new ethers.ContractFactory(abi, binary, wallet);
  console.log("Deploying, please wait...");
  const contract = await contractFactory.deploy(); 
  await contract.deployTransaction.wait(1);
  // const deploymentReceipt =
  // console.log("Here is the deployment transaction: ");
  // console.log(contract.deployTransaction);
  // console.log("Here is the transaction receipt: ");
  // console.log(deploymentReceipt);

  const currentFavoriteNumber = await contract.retrieve();
  console.log(`Current Favorite Number: ${currentFavoriteNumber.toString()}`);
  const transactionResponse = await contract.store("21");
  const transactionReceipt = await transactionResponse.wait(1); //transactionResponse calls function on contract
  const updatedFavoriteNumber = await contract.retrieve();
  console.log(`Updated favorite number is: ${updatedFavoriteNumber}`);

 
}