I have a deployed contract. Now I want to make changes through the Remix, but there was some kind of error. please help me to solve this error. thanks.
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10;
import "erc721a/contracts/ERC721A.sol"; import "@openzeppelin/contracts/access/Ownable.sol";
Error: DeclarationError: Undeclared identifier. -->
I tried changing compiler but it didn't help