Undeclared Identifier tokensOfOwner (ERC721AQueryable.sol)

[batmanbury]

General information

Description	Value
Project version	2.4.5
Operating system and version	macOS Monterey 12.5.1
NodeJS version	16.13.1
NPM version	8.1.2
Yarn version	1.22.19
Truffle version	5.8.4

Describe the bug

I added a function to the contract file, which uses tokensOfOwner from ERC721AQueryable.sol, which is clearly imported at the top of the YourNftToken.sol file:

import "erc721a/contracts/extensions/ERC721AQueryable.sol";

And here is my new function, checking for ownership of an NFT in a wallet:

  function checkNFTOwnership(address walletAddress) public view returns (uint256) {
    uint256[] memory tokenIds = tokensOfOwner(walletAddress);
    for (uint i = 0; i < tokenIds.length; i++) {
      uint256 tokenId = tokenIds[i];
      if (_exists(tokenId) && ownerOf(tokenId) == walletAddress) {
        // Check if the NFT belongs to this collection
        if (tokenId >= _startTokenId() && tokenId < _startTokenId() + maxSupply) {
          return tokenId;
        }
      }
    }
    return 0;
  }

But my VSCode editor is underlining the use of this, and I am unable to deploy. All dependencies have been installed, and I have no errors otherwise. I clearly see the file containing tokensOfOwners inside node_modules after installation.

Expected behavior

tokensOfOwners function should be imported correctly

Screenshots

[liarco]

Hi @batmanbury,
At the moment I actively maintain my projects by fixing bugs that people report here on GitHub. This is not a bug since you are using the function the wrong way. (That function is external so it's not meant to be called inside your own contract)

For anything regarding custom implementations/features or previews of future updates I provide this kind of support to holders of ODC tokens only (https://opendevs.io/). This helps me focusing my resources on people who support my work and it allows me to work on new tools to bring out in the future with less distractions.

If you are already a holder you can follow the instructions on the website to join our private Discord channel and ask your questions there. We can help you with implementing the features you need. 💪

I hope this helps and I wish you a wonderful day! ☀️

[batmanbury]

Thanks @liarco !