CODEWITHSUNDEEP
soliditychainlink
CEM OZDEMIR
CEM OZDEMIR

Reputation: 1

why did remix give a NOT FOUND error for @chainlink/contracts

Why did remix give a NOT FOUND error?

(I knew safemath is not necessary since v0.8.)

code:

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.6 <0.9.0;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

contract FundMe {
    using SafeMathChainlink for uint256;
    
    mapping(address => uint256) public addressToAmountFunded;
    address[] public funders;
    address public owner;
    
    constructor() public {
        owner = msg.sender;
    }
    
    function fund() public payable {
        uint256 minimumUSD = 50 * 10 ** 18;
        require(getConversionRate(msg.value) >= minimumUSD, "You need to spend more ETH!");
        addressToAmountFunded[msg.sender] += msg.value;
        funders.push(msg.sender);
    }
    
    function getVersion() public view returns (uint256){
        AggregatorV3Interface priceFeed = AggregatorV3Interface(0x8A753747A1Fa494EC906cE90E9f37563A8AF630e);
        return priceFeed.version();
    }
    
    function getPrice() public view returns(uint256){
        AggregatorV3Interface priceFeed = AggregatorV3Interface(0x8A753747A1Fa494EC906cE90E9f37563A8AF630e);
        (,int256 answer,,,) = priceFeed.latestRoundData();
         return uint256(answer * 10000000000);
    }
    
    // 1000000000
    function getConversionRate(uint256 ethAmount) public view returns (uint256){
        uint256 ethPrice = getPrice();
        uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1000000000000000000;
        return ethAmountInUsd;
    }
    
    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }
    
    function withdraw() payable onlyOwner public {
        msg.sender.transfer(address(this).balance);
        
        for (uint256 funderIndex=0; funderIndex < funders.length; funderIndex++){
            address funder = funders[funderIndex];
            addressToAmountFunded[funder] = 0;
        }
        funders = new address[](0);
    }
}

Errror: not found "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol"

I use same code FundMe.sol via Patrick Collins github lesson3 here is the error

Upvotes: 0

Views: 1524

Answers (3)

Sugunaramkumar
Sugunaramkumar

Reputation: 11

Simple Suggestion: create a new contract file undername "SafeMathChainlink.sol and given code below in contract folder, and put a code import "./SafeMathChainlink.sol" in FundMe.sol instead of giving chainlink;

Upvotes: 1

Muhindo Galien
Muhindo Galien

Reputation: 81

pragma solidity >=0.6.0 <0.9.0;

import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol"; import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

COMPILER👇

0.6.6+commit.6c089d02

Upvotes: 1

ElectricSheep
ElectricSheep

Reputation: 31

If you came here following the "Solidity, Blockchain, and Smart Contract Course – Beginner to Expert Python Tutorial" course by Patrick Collins; here's what you need to change to make this work:

If you get this error:

ParserError: Source file requires different compiler version (current compiler is 0.8.11+commit.d7f03943.Emscripten.clang) - note that nightly builds are considered to be strictly less than the released version
 --> @chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol:2:1:
  |
2 | pragma solidity ^0.6.0;
  | ^^^^^^^^^^^^^^^^^^^^^^^

Make sure:

  • You use pragma solidity ^0.6.0; (or similar; i.e.: pragma solidity >=0.6.6 <0.9.0;) at the top of your contract,
  • Select a compiler version that fits what the AggregatorV3Interface.sol interface is expecting (pragma solidity ^0.6.0;)
  • And hit re-compile :)

Upvotes: 0

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