0

I'm trying to deploy a token contract and a crowdsale contract via Remix on Ropsten. However I am running into trouble. Below are both of my smart contracts and an explanation of what is happening.

MyCoin.sol

pragma solidity ^0.4.18;

import 'github.com/OpenZeppelin/zeppelin-solidity/contracts/token/ERC20/CappedToken.sol';

contract MyCoin is CappedToken {
    string public name = "MY COIN";
    string public symbol = "MYC";
    uint8 public decimals = 18;
    uint256 public cap = 500000000000000000000000;

    function MyCoin ()
        CappedToken(cap)
        public
        payable
    {

    }
}

MyCoinCrowdsale.sol

pragma solidity ^0.4.19;

import 'browser/MyCoin.sol';
import 'github.com/OpenZeppelin/zeppelin-solidity/contracts/crowdsale/emission/MintedCrowdsale.sol';

contract MyCoinCrowdsale is MintedCrowdsale {
    function MyCoinCrowdsale
        (
            uint256 _rate,
            address _wallet,
            CappedToken _token
        )
        public
        Crowdsale(_rate, _wallet, _token) {

        }
}

First I deploy MyCoin.sol via Remix and everything runs smoothly as shown in this txn.

However, when I deploy MyCoinCrowdsale.sol via Remix I get a txn error, which states :

Warning! Error encountered during contract execution [Reverted]

Any help would be greatly appreciated as I am completed stumped.

enter image description here

0

You have to understand why it fails at deployement, and for that, you have to inspect the constructor(s).

MintedCrowdsale doesn't have a specific constructor and it inherits of Crowdsale, which has one.

  constructor(uint256 _rate, address _wallet, ERC20 _token) public {
    require(_rate > 0);
    require(_wallet != address(0));
    require(_token != address(0));

    rate = _rate;
    wallet = _wallet;
    token = _token;
}

You can see the 3 require and it's highly probable that you are passing a wrong value for at least one of these parameters.

  • Yep, figured out that I didn't provide any params to the my crowdsale about 25 secs after I posted my question. – T-Pane Jun 25 '18 at 14:54

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.