Error: could not coalesce error (error={ "code": -32003, "message": "transaction underpriced", "stack": "Error: transaction underpriced\n

[Sharma7Prateek]

hey ,

i am getting this error while sending a raw transaction.

Here is my code:

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

async function main() {
    // First, compile this!
    // And make sure to have your ganache network up!
    const provider = new ethers.JsonRpcProvider("http://127.0.0.1:8545");
    const wallet = new ethers.Wallet("0x9ed7673fdaaf656f6f0d460e9590ff6cc65f8270179e1e4866d59dfbc55f278f", provider);
    // const encryptedJson = fs.readFileSync("./.encryptedKey.json", "utf8");
    // let wallet = new ethers.Wallet.fromEncryptedJsonSync(
    //   encryptedJson,
    //   process.env.PRIVATE_KEY_PASSWORD
    // );
    // wallet = wallet.connect(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);

    // const contract = await contractFactory.deploy({ gasPrice: 100000000000 })
    /*
    console.log(`Contract deployed to ${contract.address}`)
    // console.log("Here is the transaction:")
    // console.log(contract.deployTransaction)
    // console.log("Here is the receipt:")
    // console.log(deploymentReceipt)
    // const nonce = await wallet.getTransactionCount()
    */
    const tx = {
        nonce: 4,
        gasPrice: 20000000000,
        gasLimit: 1000000,
        to: null,
        value: 0,
        data: "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",
        chainId: 1337,
    }
    const senttxresponse = await wallet.sendTransaction(tx);
    await senttxresponse.wait(1);
    console.log(senttxresponse);
}

Thanks in advance...

[alymurtazamemon]

@Sharma7Prateek Did you try to increase the price?

[Wakushi]

Hi,

I have the same issue.
It seems that Patrick answered to this problem already in this discussion.
However that didn't work for me and increasing the price doesn't help either because at one point the error becomes "insufficient funds".

Edit : I managed to fix it.

It seems we don't have the same error Patrick gets when he deploys at 7:21:09.
His error : "TXRejectedError: the tx doesn't have the correct nonce..."
Our error : ""transaction underpriced", "stack": "Error: transaction underpriced\n"

However if you go to the course's next step, which is storing the correct nonce in a variable and using it in your tx object, it just works properly and the "transaction underpriced" doesn't happen.

  const nonce = await wallet.getTransactionCount();
  const tx = {
      nonce: nonce,
      gasPrice: 100000000000,
      gasLimit: 1000000,
      to: null,
      value: 0,
      data: "0x60...",
      chainId: 1337,  
    }

Hope that can help someone, happy coding !

[jakerumbles]

Thanks for the tip. Very strange behavior lol