Base constructor arguments given twice when using ERC1155 Preset

Support Contracts
2

Hi @Tomas_Velasquez,

Welcome to the community :wave:

I recommend having a look at: Create an ERC1155.

As you are extending ERC1155PresetMinterPauser you should call the constructor of ERC1155PresetMinterPauser rather than the ERC1155 constructor.

uri isn’t defined in your contract. You could pass a value in using your constructor or set a value in a constant.

I wasn’t sure why you set your contract to be abstract. Unless you wanted to create an ERC1155 which inherits from this contract.

You have a wide pragma, >=0.4.22 <0.8.0, when you may be better to stick to a similar pragma to the contract you are extending.

Your contract could look something like the following:

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.4.22 <0.8.0;

import "@openzeppelin/contracts/presets/ERC1155PresetMinterPauser.sol";

contract PruebasToken is ERC1155PresetMinterPauser {
    uint256 public constant xx = 1;
    uint256 public constant yy = 2;
    uint256 public constant zz = 3;

    constructor(string memory uri) public ERC1155PresetMinterPauser(uri) {
        _mint(msg.sender, xx, 10**10, "");
        _mint(msg.sender, yy, 10**10, "");
        _mint(msg.sender, zz, 10**10, "");
    }
}