5 Remix 导入 openzeppelin的IERC20.sol出错，显示Unable to import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol": File not found
1.在Remix中导入IERC20.sol文件 pragma solidity 0.6.12;
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol"; import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/IERC20.sol";
2.Compiler出现以下错误 Unable to import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol": File not found
请教下如何解决。谢谢。
