Constructor error on multiple pieces of code - Remix

Question

I've been getting this error when I try and deploy a contract with a constructor on multiple pieces of code. I use the correct complier version too

creation of MyContract errored: Error encoding arguments: Error: invalid address (argument="address", value="", code=INVALID_ARGUMENT, version=address/5.1.0) (argument=null, value="", code=INVALID_ARGUMENT, version=abi/5.1.2)

can anyone help?

pragma solidity 0.5.1;

contract MyContract {
    mapping(address => uint256) public balances;
    address payable wallet;
    
    constructor(address payable _wallet) public {
        wallet = _wallet;
    }
    
    function buyToken() public payable{
        //buy token
        balances[msg.sender] += 1;
        wallet.transfer(msg.value);
        //send eth to wallet
    }
}

edit: this is happening when I pass in address payable _wallet into my constructor. If I take out address payable I can deploy. This happens on my other computer too. So I know this isnt a machine related error

Answer 1

Your code is all good. Your problem is that the editor you are using is having some different version of solidity compiler installed in it. Try using that same version in your code too or else you can always use Remix editor for writing Smart Contracts.

Hope your problem is resolved

Okay so just checked it again, everything is fine. The thing is since you are passing an argument inside the constructor, so you need to provide that before deploying your smart contract. Since you are not providing it any address of an account, it throws invalid argument error.

Just copy an address, it can be the one from which you are deploying your smart contract too, paste it in arguments field next to deploy and then proceed. It will work without any problem.

All the best!