[ERROR] protocolParamUTxOCostPerWord

Developers Cardano Integration
1

Hi guys, im have problem with this “protocolParamUTxOCostPerWord”.

“Command failed: transaction build-raw Error: Transaction validaton error: Errors in protocol parameters conversion: Missing parameter: protocolParamUTxOCostPerWord”

const cardano = require("./cardano");

const array = [1];
const prompt = require('prompt-sync')();
const address = prompt("Wallet Address: ")
function sendADACardano(walletName) {
    const sender = cardano.wallet(walletName);

    console.log(
        "Balance of Sender wallet: " +
        cardano.toAda(sender.balance().value.lovelace) +
        " ADA"
    );

    const receiver = address
       // 
    const VALUE = 2;

    const txInfo = {
        txIn: cardano.queryUtxo(sender.paymentAddr),
        txOut: [
            {
                address: sender.paymentAddr,
                value: {
                    lovelace: sender.balance().value.lovelace - cardano.toLovelace(VALUE),
                },
            },
            {
                address: receiver,
                value: {
                    lovelace: cardano.toLovelace(VALUE),
//asset
                },
            },
        ],
    };
    const raw = cardano.transactionBuildRaw(txInfo);
    const fee = cardano.transactionCalculateMinFee({
        ...txInfo,
        txBody: raw,
        witnessCount: 1,
    });

    txInfo.txOut[0].value.lovelace -= fee;
    const tx = cardano.transactionBuildRaw({ ...txInfo, fee });

    const txSigned = cardano.transactionSign({
        txBody: tx,
        signingKeys: [sender.payment.skey],
    });

    const txHash = cardano.transactionSubmit(txSigned);

    console.log(`Taxa: ${fee / 10000000}; Valor enviado: ${VALUE}`);
    console.log(`https://cardanoscan.io/transaction/${txHash}`);
}

function start() {
    console.time();
    array.forEach((wallet) => {
        try {
            sendADACardano(`mat${wallet}`);
        } catch (e) {
            console.log("erro");
        }
    });
    console.timeEnd();
}

start();

This is the code im using to do this function.

in the Protocol,json i have this parameter as “Null”, i tried to change to 34482 that was the default, but nothing happen.

Hope someone can help me.