I know there are already a lot of topics that deal with the problem but their solutions didn't work for me.

this is the code:

pragma solidity ^0.5.2;

import "https://github.com/OpenZeppelin/openzeppelin-solidity/contracts/token/ERC721/ERC721Full.sol";
import "https://github.com/OpenZeppelin/openzeppelin-solidity/contracts/token/ERC721/ERC721Mintable.sol";

contract MyNFT is ERC721Full, ERC721Mintable {

  struct Structure{
      string name;
      uint id;
  Structure[] public listOfStructure;
  address public owner;
  constructor() public{
      owner = msg.sender;

  function create(string memory _name) public{
      uint id = listOfStructure.length;
      listOfStructure.push(Structure(_name, id));
      mint(owner, id);


Remix says "This contract does not implement all functions and thus cannot be created.", I just started using nft so I know it could be a concept error, for example I didn't understand the concept of interface very well, but I don't think it's the same problem (maybe).

I tried to deploy with truffle but I have a similar error.

Thanks and sorry for the duplicate!

  • 1
    You must implement all the not implemented functions of ERC721Full and all the not implemented functions of ERC721Mintable. Apr 16, 2019 at 13:42

1 Answer 1


I solved using 0xcert instead of openzeppelin.

  • 1
    Thank you, would you please post the code too Apr 17, 2019 at 15:41

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