After setup truffle.config.js, 2_token_migration.js and MorarableToken.sol, I tried to run truffle migrate but it failed with an error.
Is there a bad version of Node.js?
Error parsing /Users/mbp/NFT/moralis-rarible/contracts/contracts/Migrations.sol: Cannot read property ‘addFunction’ of undefined
truffle.config.js
version: "^0.8.0"
2_token_migration.js
const MorarableToken = artifacts.require("MorarableToken");
module.exports = function (deployer) {
deployer.deploy(MorarableToken);
};
MorarableToken.sol
pragma solidity ^0.8.0;
import "../node_modules/@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "../node_modules/@openzeppelin/contracts/utils/Counters.sol";
contract MorarableToken is ERC721 {
using Counters for Counters.Counter;
Counters.Counter private _tokenIds;
constructor() ERC721("MorarableToken", "MORA") {}
struct Item {
uint256 id;
address creator;
string uri;
}
mapping(uint256 => Item) public Items;
function createItem(string memory uri) public returns (uint256) {
_tokenIds.increment();
uint256 newItemId = _tokenIds.current();
_safeMint(msg.sender, newItemId);
Items[newItemId] = Item(newItemId, msg.sender, uri);
return newItemId;
}
function tokenURI(uint256 tokenId)
public
view
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
return Items[tokenId].uri;
}
}
