Why is this error showing up

[ArkX69]

hey so i've been doing the FundMe contract but whenever i try to withdraw this happens

TypeError: "send" and "transfer" are only available for objects of type "address payable", not "address".
  --> Fund.sol:42:9:
   |
42 |         msg.sender.transfer(address(this).balance);
   |         ^^^^^^^^^^^^^^^^^^^ ```

//from the code

function withdraw() public payable{
        msg.sender.transfer(address(this).balance);
    }

i did the exact same steps as shown in the video but still

[krakxn]

Let me know if the following fixes your problem:

msg.sender.transfer((payable(address(this))).balance);

[mattjaf]

address(this).balance is an amount not an address

[krakxn]

Apologies, brainfroze. The payable type conversion should be for msg.sender

[mattjaf]

oh, in solidity compiler version 8 we gotta specify that the address is a payable address for "send" and "transfer"

payable(msg.sender).transfer(address(this).balance);