如何导入Aggregator V3接口 [英] How can I import AggregatorV3Interface

问题描述

我正在尝试导入AggregatorV3，但找不到该文件，以下是我的代码； 很抱歉，我还是个初学者。

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";

contract Lottery {
    address payable[] public players; //to keep track of all players, payable array
    uint256 public usdEntryFee;
    AggregatorV3Intefrace internal ethUsdPriceFeed;

    constructor(address _priceFeedAddress) public {
        usdEntryFree = 50 * (10**18);
        ethUsdPriceFeed = AggregatorV3Interface(_priceFeedAddress); //we need to pass the address of aggv3 in constructor
    }

    function enter() public payable {
        //payable since we want them to pay in eth
        //50 $ minimum
        players.push(msg.sender);
    }

    function getEntranceFee() public view returns (uint256) {}

    function startLottery() public {}

    function endLottery() public {}
}

这是我的YAML文件：

dependencies:
  - smartcontractkit/chainlink-brownie-contracts@1.1.1

compiler:
  solc:
    remappings:
    - '@chainlink=smartcontractkit/chainlink-brownie-contracts@1.1.1'

以下是错误：

(base) marc@Marcs-MacBook-Pro smartcontract-lottery % brownie compile
Brownie v1.17.2 - Python development framework for Ethereum

Compiling contracts...
  Solc version: 0.8.11
  Optimizer: Enabled  Runs: 200
  EVM Version: Istanbul
CompilerError: solc returned the following errors:

ParserError: Source "/Users/marc/.brownie/packages/smartcontractkit/chainlink-brownie-contracts@1.1.1/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol" not found: File not found.
 --> contracts/Lottery.sol:4:1:
  |
4 | import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

我试着更改 编译器： Solc： 重新映射： --‘@chainlink=smartcontractkit/chainlink-brownie-contracts@1.1.1’ 至@0.2.1 我还尝试将Solidity版本更改为较新的版本，但不起作用 提前感谢！

推荐答案

我通过执行以下操作解决了它： NPM安装@chainlink/合同--保存

and in the yaml file doing:

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