TypeError: Cannot read property 'match' of undefined truffle

Hi, I’m creating my first contract with Truffle and Ganache, and after being able to create several ERC721 tokens, I’m getting this error with create function, that I can’t figure out why it’s happening to me.
I have searched and tried different things but I can’t find a solution.
If anyone has any suggestions, it would be of great help to me.
This is my contact.

pragma solidity >=0.6.0 <0.8.0;

import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/cryptography/ECDSAUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/math/SafeMathUpgradeable.sol";

contract Kargain is ERC721BurnableUpgradeable, AccessControlUpgradeable {
    using SafeMathUpgradeable for uint256;
    using ECDSAUpgradeable for bytes32;

    uint256 private constant COMMISSION_EXPONENT = 4;
    uint256 private _tokenCurrentId;
    address payable private _platformAddress;
    uint256 private _platformCommission;

    mapping (uint => Token) private _tokens;
    mapping (uint256 => address payable) private _offers;
    mapping (uint256 => uint256) private _offers_closeTimestamp;

    event TokenCreated(address indexed creator, uint256 indexed tokenId);
    event OfferReceived(address indexed payer, uint tokenId);
    event OfferAccepted(address indexed payer, uint tokenId);
    event OfferRejected(address indexed payer, uint tokenId);

    struct Token {
        address owner;
        uint amount;
        bool isValue;
        bool offer;
        bool offerAccepted;

    struct TransferType {
        address from;
        address to;
        uint256 tokenId;
        uint256 amount;

    modifier onlyAdmin(){
        require(hasRole(DEFAULT_ADMIN_ROLE, _msgSender()), "Kargain: Caller is not a admin");

    function initialize(address payable platformAddress_, uint256 platformCommissionPercent_)
    initializer public {
        _platformAddress = platformAddress_;
        _platformCommission = platformCommissionPercent_;
        __ERC721_init("Kargain", "KGN");
        _setupRole(DEFAULT_ADMIN_ROLE, msg.sender);

    function platformCommission() public view returns(uint256){
        return _platformCommission;

    function setPlatformCommission(uint256 platformCommission_) public onlyAdmin {
        _platformCommission = platformCommission_;

    function platformAddress() public view returns(address payable){
        return _platformAddress;

    function setPlatformAddress(address payable platformAddress_) public onlyAdmin {
        _platformAddress = platformAddress_;

    function create(address payable creator, uint256 tokenId, uint256 amount) public payable{
        require(_exists(tokenId), "Kargain: Id for this token already exist");
        super._mint(creator, _tokenCurrentId);
        _tokens[tokenId].owner = creator;
        _tokens[tokenId].isValue = true;
        _tokens[tokenId].amount = amount;
        emit TokenCreated(creator, tokenId);

    function _exists(uint256 _tokenId) internal view override returns (bool) {
        address owner = _tokens[_tokenId].owner;
        return owner != address(0);

    function purchaseToken(address payable payer, uint256 _tokenId) public payable {
        require(_exists(_tokenId), "Kargain: Auction for this token not exist");
        require(_tokens[_tokenId].offer, "Kargain: An offer is pending");
        require(_tokens[_tokenId].offerAccepted, "Kargain: Offer was accepted");
        require(msg.value != _tokens[_tokenId].amount, "Kargain: the offer amount is invalid");
        address payable refundAddress = _offers[_tokenId];
        _offers[_tokenId] = payer;
        emit OfferReceived(msg.sender, _tokenId);



Do all the other functions work? Are any of the other functions untested?

I think it might be that the address payable creator try to set it to address creator. I could be mistaken, but the mint function shouldn’t require him to be payable.

Try that and let me know if it fixes it.

Can you please show me the error that occurs? IS it on a test net somewhere?

It has been solved. The problem was an extra space between the parameters of a function call from Truffle…

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