2

I'm trying to deploy a contract using Truffle v4.0.1, within Truffle's own console but I keep getting out of gas errors.

The constructor looks like:

function MyAwesomeCrowdsale(
    uint64 _startTime,
    uint64 _endTime,
    uint256 _rate,
    uint256 _presaleRate,
    address _wallet,
    address _foundationPool,
    address _foundersPool,
    address _legalExpensesWallet,
    uint256 _goal
) public
{
    require(_endTime > _startTime);
    require(_rate > 0);
    require(_wallet != 0x0);

    token = new MyAwesomeToken(TOTAL_SUPPLY_CAP);
    // mints all tokens and gives them to the crowdsale
    token.mint(address(this), TOTAL_SUPPLY_CAP);
    token.finishMinting();

    startTime = _startTime;
    endTime = _endTime;
    rate = _rate;
    presaleRate = _presaleRate;
    wallet = _wallet;
    goal = _goal;

    vault = new MyAwesomeRefundVault(wallet);

    foundationPool = _foundationPool;
    foundersPool = _foundersPool;
    legalExpensesWallet = _legalExpensesWallet;

    // Set timelocks to 1 year after startTime
    uint64 unlockAt = uint64(startTime + 31622400);
    timelockFounders = new TokenTimelock(token, foundersPool, unlockAt);

    distributeInitialFunds();
}

I hit out of gas error at the line:

timelockFounders = new TokenTimelock(token, foundersPool, unlockAt);

TokenTimelock is imported from zeppelin-solidity/contracts/token/TokenTimelock.sol

If I comment that out then everything deploys just fine, but with that line in there, no amount of messing about with default gas and gasPrice values helps at all.

How can I reliably estimate the gas needed to deploy this contract?

3

Truffle 4.0 has optimization turned off by default, so you'll probably want to both increase supplied gas and turn optimization on so the gas used on creation is considerably reduced:

module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 8545,
      network_id: "*", // Match any network id
      gas: 4500000
    }
  },
  solc: {
    optimizer: {
      enabled: true,
      runs: 200
    }
  }
};
0

Inside truffle.js, add more gas:

module.exports = {
  migrations_directory: "./migrations",
  networks: {
        rinkeby: {
          provider: new HDWalletProvider(mnemonic, "https://rinkeby.infura.io/"),
          gas: 4500000,
          network_id: 4
        }
  }
}
  • I'm specifically trying to do this within the truffle console not an external blockchain. – Dave Sag Nov 21 '17 at 13:00

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