ERC1155 Burnable from Wizard

[coinzep]

I simply copy paste the contract code from the wizard with all features of mintable, burnable, supply tracking, pausable. Included access control as well.

however, deploying this contract in remix gives a 'declaration error, identifier not found' and the 'burnable' word was ^ underlined.

Is this a remix bug? or is the contract the problem here?

[Skyge]

Do you mean you have selected these options as following:

If so, I open it on the Remix, it works well.

The full code is at here:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.2;

import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Burnable.sol";
import "@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol";

contract MyToken is ERC1155, AccessControl, Pausable, ERC1155Burnable, ERC1155Supply {
    bytes32 public constant URI_SETTER_ROLE = keccak256("URI_SETTER_ROLE");
    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");

    constructor() ERC1155("") {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(URI_SETTER_ROLE, msg.sender);
        _grantRole(PAUSER_ROLE, msg.sender);
        _grantRole(MINTER_ROLE, msg.sender);
    }

    function setURI(string memory newuri) public onlyRole(URI_SETTER_ROLE) {
        _setURI(newuri);
    }

    function pause() public onlyRole(PAUSER_ROLE) {
        _pause();
    }

    function unpause() public onlyRole(PAUSER_ROLE) {
        _unpause();
    }

    function mint(address account, uint256 id, uint256 amount, bytes memory data)
        public
        onlyRole(MINTER_ROLE)
    {
        _mint(account, id, amount, data);
    }

    function mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data)
        public
        onlyRole(MINTER_ROLE)
    {
        _mintBatch(to, ids, amounts, data);
    }

    function _beforeTokenTransfer(address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data)
        internal
        whenNotPaused
        override(ERC1155, ERC1155Supply)
    {
        super._beforeTokenTransfer(operator, from, to, ids, amounts, data);
    }

    // The following functions are overrides required by Solidity.

    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC1155, AccessControl)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }
}

[coinzep]

Hi, sorry i selected 'ownable'

[Skyge]

Still works for me.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.2;

import "@openzeppelin/contracts@4.4.0/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts@4.4.0/access/Ownable.sol";
import "@openzeppelin/contracts@4.4.0/security/Pausable.sol";
import "@openzeppelin/contracts@4.4.0/token/ERC1155/extensions/ERC1155Burnable.sol";
import "@openzeppelin/contracts@4.4.0/token/ERC1155/extensions/ERC1155Supply.sol";

contract MyToken is ERC1155, Ownable, Pausable, ERC1155Burnable, ERC1155Supply {
    constructor() ERC1155("") {}

    function setURI(string memory newuri) public onlyOwner {
        _setURI(newuri);
    }

    function pause() public onlyOwner {
        _pause();
    }

    function unpause() public onlyOwner {
        _unpause();
    }

    function mint(address account, uint256 id, uint256 amount, bytes memory data)
        public
        onlyOwner
    {
        _mint(account, id, amount, data);
    }

    function mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data)
        public
        onlyOwner
    {
        _mintBatch(to, ids, amounts, data);
    }

    function _beforeTokenTransfer(address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data)
        internal
        whenNotPaused
        override(ERC1155, ERC1155Supply)
    {
        super._beforeTokenTransfer(operator, from, to, ids, amounts, data);
    }
}

[coinzep]

thanks for helping to test. maybe a cache issue

[LuckyNwekeKFC]

You need to import with the right links

import "@openzeppelin/contracts@4.4.0/token/ERC1155/ERC1155.sol";

import "@openzeppelin/contracts@4.4.0/access/Ownable.sol";

import "@openzeppelin/contracts@4.4.0/token/ERC1155/extensions/ERC1155Supply.sol";emphasized text