LESSON 5: 'Error: insufficient funds for intrinsic transaction cost '

[COSMICnoob80]

I tried my level best to deploy the following code in VSCode but in spite of trying countless times to troubleshoot it won't work. Trying tweaking with the GAS parameters, manually connecting Metamask to Alchemy ETH Sepolia TESTNET, sufficient funds in wallet, nothing helped. I have run out of options as of now. Assistance of any sort would be highly regarded. @alymurtazamemon @PatrickAlphaC

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

async function main() {
console.log(process.env.PRIVATE_KEY);
const provider = new ethers.providers.JsonRpcProvider(process.env.RPC_URL);
const encryptedJson = fs.readFileSync("./.encryptedKey.json", "utf8");
let wallet = new ethers.Wallet.fromEncryptedJsonSync(
encryptedJson,
process.env.PRIVATE_KEY_PASSWORD
);
wallet = await wallet.connect(provider);
const abi = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.abi", "utf8");
const bytecode = fs.readFileSync(
"./SimpleStorage_sol_SimpleStorage.bin",
"utf8"
);
const factory = new ethers.ContractFactory(abi, bytecode, wallet);

console.log("Deploying, please wait ...");

const gasPrice = ethers.utils.parseUnits(config.gasPrice, "wei");
const gasLimit = ethers.BigNumber.from(config.gasLimit);

const gasParameters = {
gasPrice: gasPrice,
gasLimit: gasLimit,
};

const contract = await factory.deploy(gasParameters);
await contract.deployed();
console.log(Contract Address: ${contract.address});

console.log("Contract deployed:", contract.address);

// Interact with the deployed contract
const currentFavoriteNumber = await contract.retrieve();
console.log(Current Favorite Number: ${currentFavoriteNumber.toString()});

const transactionResponse = await contract.store("7");
await transactionResponse.wait(1);

const updatedFavoriteNumber = await contract.retrieve();
console.log(Updated favorite number is: ${updatedFavoriteNumber});
}

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

Error: insufficient funds for intrinsic transaction cost [ See: https://links.ethers.org/v5-errors-INSUFFICIENT_FUNDS ]

[23solo]

I ran your code without encryption, it worked fine for me. Please check the following :

• You're using correct testNet sepolia in this case I believe.
• Make sure the above has the correct rpc_url (By default Alchemy creates app on Mainnet)
• Make sure you have not set rpc_url / private_key env using command line (run env in cmd to make sure)
  Also you can check the deployer address it should be the same as your metaMask addr.

 const [deployer] = await ethers.getSigners()
 console.log("Deploying contracts with the account:", deployer.address)

[COSMICnoob80]

I tried the following code snippet in which the gas parameters were amended, and it worked for me, thanks a lot for reaching out:

`async function main() {
const provider = new ethers.providers.JsonRpcProvider(process.env.RPC_URL);
const wallet = new ethers.Wallet(process.env.PRIVATE_KEY, 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...");

// Set gasPrice and gasLimit here
const gasPrice = ethers.utils.parseUnits("10", "gwei"); // Adjust the gas price accordingly
const gasLimit = 3000000; // Adjust the gas limit accordingly

const overrides = {
gasPrice: gasPrice,
gasLimit: gasLimit,
};

const contract = await contractFactory.deploy(overrides);
const deploymentReceipt = await contract.deployTransaction.wait(1);
console.log(Contract deployed to ${contract.address});

// Interact with the deployed contract
const currentFavoriteNumber = await contract.retrieve();
console.log(Current Favorite Number: ${currentFavoriteNumber.toString()});

const transactionResponse = await contract.store(7, overrides);
await transactionResponse.wait(1);

const updatedFavoriteNumber = await contract.retrieve();
console.log(Updated favorite number is: ${updatedFavoriteNumber});
}

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

[b0nesss]

Hello, thank you for your help over here, it worked out for me too. Can you please explain how this solved the problem?

[alymurtazamemon]

@COSMICnoob80 Is this resolved?

[COSMICnoob80]

Yes it is.

[BBTDR]

I have the same issue as you. After ensuring that my account is connected to the Sepolia network and there are funds in my account, I resolved the problem by running the encryptKey.js program again. It turned out that the private key had changed, but the encrypted code derived from the previous private key was not updated, causing the program to connect to a non-existent empty wallet every time. I hope my solution can help you as well.

[jujuvideogirlai]

re-running encryptKey.js also worked for me! Thanks a lot! <3