Smart contract deploy error

Hi, I’m a beginner at creating contracts, I’ve error when I deploy my contract with truffle and ganache-cli:

"Owo" hit a require or revert statement somewhere in its constructor. Try:
   * Verifying that your constructor params satisfy all require conditions.
   * Adding reason strings to your require statements.

this is my constructor code:

    constructor (address payable charityWalletAddress) public {
        _charityWalletAddress = charityWalletAddress;
        _rOwned[_msgSender()] = _rTotal;

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
        // pancakeswapv2 for BSC network
        // Create a uniswap pair for this new token
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
        .createPair(address(this), _uniswapV2Router.WETH());

        // set the rest of the contract variables
        uniswapV2Router = _uniswapV2Router;

        // Exclude owner and this contract from fee
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;

        emit Transfer(address(0), _msgSender(), _tTotal);


const Owo = artifacts.require("Owo");

module.exports = async function (deployer) {
    const accounts = await web3.eth.getAccounts()
    await deployer.deploy(Owo, accounts[0]);

can anyone explain to me where is the problem with my code?

Hi Komeil! Welcome to Open Zeppelin.

Looking at your code

IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);

Which network are you deploying to? If you are deploying to a test net, this router address needs to change. The router doesn’t exist anywhere, but on BSC’s live net.

As you mentioned you are new, I highly recommend doing this tutorial.

You don’t have to understand it 100%, but it’s a great way to get you up to speed and get a developer environment going.

After that check out

I know it’s a pain to go through all this, but as you learn you will give yourself the skills needed to create any type of smart contract you want.

1 Like

how I can find my network address? I use rinkeby network.
is there any possibility to test my token in PancakeSwap for adding liquidity and etc?
btw Thanks for your usefull information.

Yes absolutely you can use for testing with pancakeswap, the router address is 0x9Ac64Cc6e4415144C455BD8E4837Fea55603e5c3

For your network address, I’m a little confused at what you mean. Your wallet in metamask should remain the same. For network address you can find it with your API key if you are using Alchemy.

1 Like

Hi again and thanks for your response, I’ve another question How can I see the chart of my test token? Is there any website to show bsc testnet tokens chart?