I have almost searched all of duplicate questions but not getting any help. Can someone please point out what is wrong why I'm getting error insufficient funds for gas * price + value, I double check and I have enough ether in my test account.

Some console output:

    console.log('web3 version:'+ web3.version);
    web3.eth.net.getId(function(err, res){
        console.log("Net: "+res);
    web3.eth.net.getNetworkType(function(err, res){
            console.log("getNetworkType: "+res);
    web3.eth.getBlockNumber(function(error, result){
        console.log("Block Number: "+result);

    web3 version:1.0.0-beta.34
    Block Number: 3085927
    291 Net: 3
    getNetworkType: ropsten

My Simple Web Page:

<!DOCTYPE html>
<html lang="en">
<script src="http://example.com/js/jquery.js"></script>
<script src="http://example.com/js/web3.js-1.0.0-beta.34/dist/web3.min.js"></script>


<button class="btn btn-primary" onclick="sendTrans();">Send Trans</button>

<script type="text/javascript">

var web3 = new Web3(new Web3.providers.HttpProvider('http://45:158:654:7:8545'));

function sendTrans(){
    // ShahzadTestCoin contract ABI Array
var abiArray =[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"fundsWallet","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"unitsOneEthCanBuy","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalEthInWei","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}];

// Who holds the token now?
var myAddress = "0x429C4474c5914a28063e2C37cA23bb4aF9ef0728"; //5.978318602 Ether//https://ropsten.etherscan.io/address/0x429C4474c5914a28063e2C37cA23bb4aF9ef0728

// Who are we trying to send this token to?
var destAddress = "0x0346d2e50E29065b3b3c73B878FaFDcEb8Ee13f0"; //4.999873784 Ether//https://ropsten.etherscan.io/address/0x0346d2e50E29065b3b3c73B878FaFDcEb8Ee13f0

// ShahzadTestCoin Token (STC)
// The address of the contract
var contractAddress = "0xc61BEC3497e549b9fA58AE79a5a573E064fe3311";//https://ropsten.etherscan.io/address/0xc61bec3497e549b9fa58ae79a5a573e064fe3311
var myContract = new web3.eth.Contract(abiArray, contractAddress);
myContract.options.from = myAddress;

var privateKey = 'a369264ebe211xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';

var transactionObject = {
    from: myAddress,
    to: contractAddress,
    value: '0x0', 
    data: myContract.methods.transfer(destAddress, 5).encodeABI(),
    chainId: 3

web3.eth.getGasPrice(function(err, getGasPrice){

        console.log("getGasPrice: "+getGasPrice);
        transactionObject.gasPrice = getGasPrice;

        web3.eth.estimateGas(transactionObject, function(err, estimateGas){
            console.log("estimateGas  err: "+err);
            console.log("estimateGas  res: "+estimateGas);

            transactionObject.gas = estimateGas;

            web3.eth.accounts.signTransaction(transactionObject, privateKey , function(err, signed){

            console.log("signTransaction err: "+err);

                console.log("signTransaction signed: "+signed.rawTransaction);

                web3.eth.sendSignedTransaction(signed.rawTransaction, function(err, res){
                    console.log("sendSignedTransaction  err: "+err);
                        console.log("sendSignedTransaction  res: "+res);



Contract Source Code:

pragma solidity ^0.4.4;

contract Token {

    /// @return total amount of tokens
    function totalSupply() constant returns (uint256 supply) {}

    /// @param _owner The address from which the balance will be retrieved
    /// @return The balance
    function balanceOf(address _owner) constant returns (uint256 balance) {}

    /// @notice send `_value` token to `_to` from `msg.sender`
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transfer(address _to, uint256 _value) returns (bool success) {}

    /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
    /// @param _from The address of the sender
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}

    /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @param _value The amount of wei to be approved for transfer
    /// @return Whether the approval was successful or not
    function approve(address _spender, uint256 _value) returns (bool success) {}

    /// @param _owner The address of the account owning tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @return Amount of remaining tokens allowed to spent
    function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);


contract StandardToken is Token {

    function transfer(address _to, uint256 _value) returns (bool success) {
        //Default assumes totalSupply can't be over max (2^256 - 1).
        //If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap.
        //Replace the if with this one instead.
        //if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
        if (balances[msg.sender] >= _value && _value > 0) {
            balances[msg.sender] -= _value;
            balances[_to] += _value;
            Transfer(msg.sender, _to, _value);
            return true;
        } else { return false; }

    function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
        //same as above. Replace this line with the following if you want to protect against wrapping uints.
        //if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
        if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
            balances[_to] += _value;
            balances[_from] -= _value;
            allowed[_from][msg.sender] -= _value;
            Transfer(_from, _to, _value);
            return true;
        } else { return false; }

    function balanceOf(address _owner) constant returns (uint256 balance) {
        return balances[_owner];

    function approve(address _spender, uint256 _value) returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;

    function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
      return allowed[_owner][_spender];

    mapping (address => uint256) balances;
    mapping (address => mapping (address => uint256)) allowed;
    uint256 public totalSupply;

contract ShahzadTestCoin is StandardToken { // CHANGE THIS. Update the contract name.

    /* Public variables of the token */

    The following variables are OPTIONAL vanities. One does not have to include them.
    They allow one to customise the token contract & in no way influences the core functionality.
    Some wallets/interfaces might not even bother to look at this information.
    string public name;                   // Token Name
    uint8 public decimals;                // How many decimals to show. To be standard complicant keep it 18
    string public symbol;                 // An identifier: eg SBX, XPR etc..
    string public version = 'H1.0'; 
    uint256 public unitsOneEthCanBuy;     // How many units of your coin can be bought by 1 ETH?
    uint256 public totalEthInWei;         // WEI is the smallest unit of ETH (the equivalent of cent in USD or satoshi in BTC). We'll store the total ETH raised via our ICO here.  
    address public fundsWallet;           // Where should the raised ETH go?

    // This is a constructor function 
    // which means the following function name has to match the contract name declared above
    function ShahzadTestCoin() {
        balances[msg.sender] = 1000000000000000000000;               // Give the creator all initial tokens. This is set to 1000 for example. If you want your initial tokens to be X and your decimal is 5, set this value to X * 100000. (CHANGE THIS)
        totalSupply = 1000000000000000000000;                        // Update total supply (1000 for example) (CHANGE THIS)
        name = "ShahzadTestCoin";                                   // Set the name for display purposes (CHANGE THIS)
        decimals = 18;                                               // Amount of decimals for display purposes (CHANGE THIS)
        symbol = "STCN";                                             // Set the symbol for display purposes (CHANGE THIS)
        unitsOneEthCanBuy = 10;                                      // Set the price of your token for the ICO (CHANGE THIS)
        fundsWallet = msg.sender;                                    // The owner of the contract gets ETH

    function() payable{
        totalEthInWei = totalEthInWei + msg.value;
        uint256 amount = msg.value * unitsOneEthCanBuy;
        require(balances[fundsWallet] >= amount);

        balances[fundsWallet] = balances[fundsWallet] - amount;
        balances[msg.sender] = balances[msg.sender] + amount;

        Transfer(fundsWallet, msg.sender, amount); // Broadcast a message to the blockchain

        //Transfer ether to fundsWallet

    /* Approves and then calls the receiving contract */
    function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);

        //call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
        //receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
        //it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
        if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
        return true;
  • 1
    What are the values of gas and gasPrice? Have you tried including a leading 0x in the private key? My guess would be that somehow the transaction is being sent "from" the wrong account (which would mean something is wrong with the private key).
    – user19510
    Apr 22, 2018 at 14:26
  • @smarx you save my life :) I included 0x in front of private key and now it is working, thanks man... estimate Gas is 36210, could you please put a answer with detail what is 0x and where should I need to use it? should I include it in beginning of transfer tokens? Apr 22, 2018 at 17:54
  • I can see my transaction now at ropsten network as well :) Apr 22, 2018 at 17:54
  • One thing more when I send these tokens with myetherwallet, there is a field Gas Limit, should I include gasLimit option in my transaction object or gas option is okay ? Apr 22, 2018 at 17:59
  • Who will pay gas price? token sender or token receiver? Apr 22, 2018 at 18:00

1 Answer 1


Per the comments on the question, you need to add a 0x to the beginning of your private key. web3.js often requires this prefix so it knows the string you're supplying is a hexadecimal representation of a byte sequence (like a private key).

  • Wow! Thank you thank you for that simple tidbit. That '0x' cost me an hour or so and a lot of searching for solutions.
    – djneely
    Jun 2, 2018 at 0:38

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