SushiSwap Fork在createPair()

Question

我最近从存储库那里得到了分叉。在我的部署过程中从createPair()调用UniswapV2Factory.sol时，我得到了以下错误，代码没有被触及，我不知道我哪里出错了。

错误：Error: Returned error: VM Exception while processing transaction: revert

部署：

// Uniswap
const Factory = artifacts.require('Uniswapv2/UniswapV2Factory.sol');

// WETH
const WETH = artifacts.require('WETH.sol');

// Testing
const MockERC20 = artifacts.require('MockERC20.sol');

module.exports = async function(deployer, network, accounts) {
    const [admin, _] = accounts;

    // Test Tokens
    const tokenA = await MockERC20.new('TokenA', 'TKA', web3.utils.toWei('100000'));
    const tokenB = await MockERC20.new('TokenB', 'TKB', web3.utils.toWei('100000'));

    // Uniswap factory
    await deployer.deploy(Factory, admin);
    const factory = await Factory.deployed();

    await factory.createPair(tokenA.address, tokenB.address);

};

CreatePair函数：

function createPair(address tokenA, address tokenB) external override returns (address pair) {
        require(tokenA != tokenB, 'UniswapV2: IDENTICAL_ADDRESSES');
        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
        require(token0 != address(0), 'UniswapV2: ZERO_ADDRESS');
        require(getPair[token0][token1] == address(0), 'UniswapV2: PAIR_EXISTS'); // single check is sufficient
        bytes memory bytecode = type(UniswapV2Pair).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(token0, token1));
        assembly {
            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }
        UniswapV2Pair(pair).initialize(token0, token1); //<-- this is causing the error
        getPair[token0][token1] = pair;
        getPair[token1][token0] = pair; // populate mapping in the reverse direction
        allPairs.push(pair);
        emit PairCreated(token0, token1, pair, allPairs.length);
    }

我推断错误发生在这里，UniswapV2Pair(pair).initialize(token0, token1);，但是为什么我不知道。

任何见解都将不胜感激！詹姆斯

Answer 1

检查您的松露配置。如果要部署到testnet或本地，请添加标志

skipDryRun: true

我使用此标志将契约部署到ropsten和mainnet(注意:这是mainnet上的默认设置)