CODEWITHSUNDEEP
soliditytruffleremix
Maroof Ali
Maroof Ali

Reputation: 31

How to fix <address>.transfer exception : member transfer not found?

this code is running on version 0.4.24 on remix but not on version 0.5.0+, I also tried to compile it with truffle on Windows 10 which also gives the exception. 

pragma solidity ^0.5.0;

contract lottery {

    address public manager;
    address[] public players;

    constructor() public{
        manager = msg.sender;
    }

    modifier restricted(){
        require(msg.sender == manager);
        _;
    }

    function enterLottery() public payable {
        require(msg.value > 0.01 ether);
        players.push(msg.sender);
    }

    function random() public view returns(uint) {
        return uint(keccak256(abi.encodePacked(block.difficulty,now,players)));
    }

    function pickWinner() public restricted{

        uint index = random() % players.length;
        address winner = players[index];
        players = new address[](0);

        winner.transfer(address(this).balance);
    }

    function getPlayers() public view returns(address[] memory){
        return players;
    }  
}

winner.transfer(address(this).balance); isn't working. I also made the pickWinner() payable but that didn't fix the error

Upvotes: 1

Views: 153

Answers (1)

Maroof Ali
Maroof Ali

Reputation: 31

Thank God, I found what I was missing. In solidity 0.5.3: The address type comes in two flavors, address and address payable: Same as address, but with the additional members transfer and send. enter link description here

create "address payable array of players" e.g. address payable[] public players; also change getPlayers() return datatype to address players[]

Upvotes: 2

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