importerror - 当我从 openzepplin 导入时找不到 utils/context.sol

Question

我从 openzappline 复制了一份合同。但是当我在 remix 上编译它时，它给了我错误....找不到 utils/context.sol。

这是进口

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

contract ERC20 is Context, IERC20, IERC20Metadata {
mapping (address => uint256) private _balances;

mapping (address => mapping (address => uint256)) private _allowances;

uint256 private _totalSupply;

string private _name;
string private _symbol;

标签： importerrorsoliditysmartcontractsopenzeppelin

Answer 1

import "@openzeppelin/contracts/utils/Context.sol";

这应该有帮助

被调用的文件来自根目录，而不是 ERC20 文件中。