ConsenSys/truffle

Ganache v7 is out! Read more about it here: https://trufflesuite.com/blog/introducing-ganache-7/

atang08

@atang08

hello

conflicted...do i stick with truffle or do i start a new project with hard hat.

Ryan Martin

@fintech_martin_twitter

hello all, i have been a accounting major for the past 3 years and only have till summer to graduate. How much progress on blockchain development is possible within a 6 month time frame?

Christian Peters

@d_avantgarde_twitter

hello

I'm trying to deploy to polygon with a config that is used to work. I'm already willing to pay a high fee, but nothing works.

matic: {
      provider: () => new HDWalletProvider({
        mnemonic: {
          phrase: process.env.MNEMONIC
        },
        providerOrUrl: 'https://rpc-mainnet.maticvigil.com/v1/<ny',
      }),
      network_id: 137,
      confirmations: 2,
      timeoutBlocks: 2000,
      gas: 10000000,
      gasPrice: 150000000000,
      networkCheckTimeout: 10000000,
    },

Is there something wrong here?

Chris Hughes

@hughes-ch

Hey everyone. I hope this is a quick question. I'm working on a personal project to use an ERC20 token to pay gas prices. I'm trying to use OpenGSN (find it here: https://opengsn.org/). OpenGSN works by wrapping the web3 provider, so I'll need to update the provider in truffle-config.js for my network. The problem is that the function OpenGSN provides to create a provider is asynchronous (returns a Promise). Does truffle-config.js support Promises for the provider setting?

CryptoBabies.com

@_cryptobabies_twitter

@d_avantgarde_twitter have you tried using Infura or alchemy instead of maticvigil ?

I had the same issues with truffle... I'd recommend switching to hardhat

the hardhat config for polygon is dirt simple...

polygon: {
url: POLYGON_MAINNET_RPC_URL,
accounts: [PRIVATE_KEY],
saveDeployments: true,
},

RPC_URL pointing at Alchemy API in my case..

works great!

depoyed to Eth, rinkeby, kovan, polygon and mumbai with hardhat.. i really struggled with truffle.

CryptoBabies.com

@_cryptobabies_twitter

oh, this is the truffle room, sorry to throw you under the bus.. just sharing my experience ;)

Suraj Nair

@suraj_rtistiq_gitlab

Hello all,

I am trying to deploy my contract to Polygon mainnet. But getting this error
Saving migration to chain.Error [ERR_UNHANDLED_ERROR]: Unhandled error. ({
code: -32603,
message: 'ESOCKETTIMEDOUT',
data: { originalError: { code: 'ESOCKETTIMEDOUT', connect: false } },
stack: 'Error: ESOCKETTIMEDOUT\n'
I can see the transaction in polygonscan, but the migration is not getting saved.

Benedict

@githubBenedict

hello

Benedict

@githubBenedict

nice site @_cryptobabies_twitter

CryptoBabies.com

@cryptobabies

@XMASdaycoin thanks ;)

Watson Ladd

@wbl

So I don't understand the decision to have truffle test require a separate migration step. Looking at the examples it seems that truffle has all the information it needs to deploy the contracts used by the test to local developer instance. I particularly don't understand how is supposed to work with constructors. Does my migration for testing need to call all constructors as would be used in the test

Benedict

@githubBenedict

hello im having an issue downloading and installing ganache, terminal is outputting that electron-webpack does not exist despite installing it from https://github.com/electron-userland/electron-webpack-quick-start

any thoughts?

mpoletiek:matrix.org @mpoletiek:matrix.org waves

mpoletiek

@mpoletiek:matrix.org

[m]

https://stackoverflow.com/questions/70616917/building-on-truffle-tutorial-adding-return-pet-function-rpc-error

Can anyone help?

Duke Crypto

@DukeCrypter_twitter

hi guys, does anyone here knows how to fix this error? "Unable to generate Contract ByteCode and ABI" - BSC

Smarty

@kritical0613

Hello!

mpoletiek

@mpoletiek:matrix.org

[m]

Hi!

Ghost

@ghost~61ccdced6da03739848d43aa

Everyone.

zekeluo

@zekeluo

Hey, help me

I have question

hot to use improt keyword to import http link. example lmprot import "https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/token/ERC20/IERC20.sol"

Can anyone help?

zekeluo

@zekeluo

Can anyone help?

swkim109

@swkim109

@zekeluo Why don't you just install OZ Contracts using npm or yarn?

zekeluo

@zekeluo

I know use install , but i want try colud import http or https into contracts

do u know @swkim109

I see this document supports HTTPS, but I don't know how to use it

can anyone help ？

thank so much

swkim109

@swkim109

@zekeluo It works in Remix.

Ben Fox

@nullfox

Hi all, it's my first time using truffle. I have a contract that correctly compiled into the build folder, whenever I try to deploy it to my local running ganache, I get the following:
Deploying 'FMan'
TypeError: Cannot read property 'return' of null

at Object._extract (/Users/fox/.nvm/versions/node/v14.18.1/lib/node_modules/truffle/build/webpack:/packages/contract/lib/reason.js:29:1)

I've searched github and can't find anything about it and I'm struggling to figure out where I've gone wrong here

Lucas Delbel

@ldelbel

Hey guys, it's my first time too. I need some help to understand the problem here. I'm trying to deploy an ERC20 contract, but it has a liquidity pool and some Uniswap instantiating happening in the constructor, which is preventing the migration to succeed. I'm doing it on ropsten using infura, and used the ropsten version of uniswap factory address and all.

constructor () {

        _rOwned[owner()] = _rTotal;

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x9c83dCE8CA20E9aAF9D3efc003b2ea62aBC08351);
         // 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;
        _isExcludedFromFee[MarketingWallet] = true;
        _isExcluded[Dead] = true;

        emit Transfer(address(0),owner() , _tTotal);
    }

It works fine without those lines, but when I add them, it shouts this error:

Error: while migrating TESTCOIN: Returned error: base fee exceeds gas limit

henry

@HenryzhuDev_twitter

Hey guys.when I verify my contracts in mainnet.But I get a reported error. "Cannot read properties of undefined (reading 'address')"

can anyone help ？thank so much

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