7

我正在尝试(通过 Hardhat)编译一个合同,该合同导入了几个具有不同 Solidity 版本的接口,但我收到以下错误:

Error HH606: The project cannot be compiled, see reasons below.

These files and its dependencies cannot be compiled with your config. This can happen because they have incompatible Solidity pragmas, or don't match any of your configured Solidity compilers.

  * contracts/FlashLoaner.sol

Flashloaner.sol:

pragma solidity >=0.5.0 <=0.8.0;

import '@uniswap/v2-periphery/contracts/interfaces/IWETH.sol';
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import '@aave/protocol-v2/contracts/interfaces/ILendingPool.sol'; //---> Issue
import "hardhat/console.sol";


contract FlashLoaner {
    struct MyCustomData {
        address token;
        uint256 repayAmount;
    }

    address public logicContract;
    
    function execute(address _weth, address _contract) external view {
        console.log(_weth);
    }
}

问题出在@aave/protocol-v2/contracts/interfaces/ILendingPool.sol. 如果我把它注释掉,我的合同就很好了。

IlendingPool.sol:pragma solidity 0.6.12;

IERC20.sol:pragma solidity ^0.5.0;

IWETH.sol:pragma solidity >=0.5.0;

安全帽配置:

module.exports = {
  solidity: {
    compilers: [
      {
        version: "0.5.7"
      },
      {
        version: "0.8.0"
      },
      {
        version: "0.6.12"
      }
    ]
  }
   ...
4

3 回答 3

4

我有一个类似的问题。

就我而言,我的合同使用了 pragma solidity 版本 ^0.8.0

为了解决这个问题,我将这些行添加到我的 hardhat.config.js 中(大多数情况下在现有的 module.exports 中)。

module.exports = {
  solidity: "0.8.0",
}

我只是删除了版本之前的“^”。我希望它可以帮助某人。

于 2021-12-10T17:54:30.407 回答
3

解决方案:

从每个界面中获取我感兴趣的功能的签名,并将它们放在我自己的界面上pragma solidity ^0.8.0

于 2021-06-29T11:34:16.023 回答
1

只需尝试设置 hardhat.config.js

    module.exports = {   solidity: {
        compilers: [
          {
            version: "0.5.5",
          },
          {
            version: "0.6.7",
            settings: {},
          },
        ],   
}, 

};

看更多!!!!

于 2021-08-23T22:43:53.070 回答