which compiler version should i use?

[Hitesh-jadhav]

code =

        // SPDX-License-Identifier: MIT

        pragma solidity 0.8.13;

        import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
        import "@chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol";

        contract fundme {
        
            using SafeMathChainlink for uint256;

            mapping(address => uint256) public addtofunded;
            function fund() public payable {
                uint256 minusd = 50 * 10 * 18;
                require(convert(msg.value) >= minusd, "you need to spent more eth");
                addtofunded[msg.sender] += msg.value;
            }
            function get_version() public view returns (uint256){
                AggregatorV3Interface priceFeed = AggregatorV3Interface(0x8A753747A1Fa494EC906cE90E9f37563A8AF630e);
                return priceFeed.version();
            }
            function get_price() public view returns(uint256){
                AggregatorV3Interface priceFeed = AggregatorV3Interface(0x8A753747A1Fa494EC906cE90E9f37563A8AF630e);
                (,int256 answer,,,) = priceFeed.latestRoundData();
                return uint256(answer * 10000000000);
            }
            function convert(uint256 ethamt) public view returns(uint256){
                uint256 ethprice = get_price();
                uint256 ethamttousd = (ethprice * ethamt) / 1000000000000000000; 
                return ethamttousd;
            } 
        

error =

            ParserError: Source file requires different compiler version (current compiler is 0.8.13+commit.abaa5c0e.Emscripten.clang) - note that nightly builds are considered to be strictly less than the released version
--> @chainlink/contracts/src/v0.6/vendor/SafeMathChainlink.sol:2:1:
|
2 | pragma solidity ^0.6.0;
| ^^^^^^^^^^^^^^^^^^^^^^^

[cromewar]

Hello @hjxman
The problem is you are trying to use SafeMath, since solidity version 0.8.0 the safe math lib is not needed, so if you are going to use a 0.8.0 version or above, please delete the safe math import ;)

Cheers.

[Hitesh-jadhav]

Ok tx 👍