Where communities thrive

  • Join over 1.5M+ people
  • Join over 100K+ communities
  • Free without limits
  • Create your own community
Repo info
  • Oct 01 11:26
    matteo-dirollo commented #5532
  • Oct 01 07:35
    gnidan closed #5582
  • Oct 01 07:35
    gnidan locked #5582
  • Oct 01 07:34
    gnidan commented #5582
  • Oct 01 07:32
    BabyBluezz opened #5582
  • Sep 30 23:24
    cds-amal commented #5579
  • Sep 30 23:01
    cds-amal review_requested #5579
  • Sep 30 20:31

    haltman-at on panopticon-cli

    Add CLI startup code for debugg… Add fetchStorage integration to… (compare)

  • Sep 30 20:13
    lsqproduction closed #5495
  • Sep 30 20:13
    lsqproduction commented #5495
  • Sep 30 20:09

    lsqproduction on v5.5.32


  • Sep 30 20:03
    dongmingh commented #5573
  • Sep 30 19:53

    lsqproduction on master

    remove property that seems to b… Eliminate circular dependency b… WIP - make first pass at conver… and 48 more (compare)

  • Sep 30 19:51

    lsqproduction on develop

    Publish - @truffle/compile-so… (compare)

  • Sep 30 18:53
    cds-amal synchronize #5579
  • Sep 30 18:53

    cds-amal on replception

    core(console): use regex to spl… (compare)

  • Sep 30 18:31
    cds-amal synchronize #5579
  • Sep 30 18:31

    cds-amal on replception

    core(test): remove console.log core(console): further process … (compare)

  • Sep 30 16:46

    eggplantzzz on replception

    Update packages/core/lib/consol… (compare)

  • Sep 30 16:46
    eggplantzzz synchronize #5579
Can anyone help?
Duke Crypto
hi guys, does anyone here knows how to fix this error? "Unable to generate Contract ByteCode and ABI" - BSC
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?
Can anyone help?
@zekeluo Why don't you just install OZ Contracts using npm or yarn?
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
@zekeluo It works in Remix.
Ben Fox
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

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

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

Looking for some help with ganache usage via node.js:

I am testing a bridge application which tries to spawn multiple ganache-server instances for setup. I have the following function which was working fairly well on ganache-cli: "^6.12.2":

import ganache from 'ganache-cli';

export type GanacheAccounts = {
  balance: string;
  secretKey: string;

export function startGanacheServer(
  port: number,
  networkId: number,
  populatedAccounts: GanacheAccounts[],
  options: any = {}
) {
  const ganacheServer = ganache.server({
    accounts: populatedAccounts,
    port: port,
    network_id: networkId,
    _chainId: networkId,
    chainId: networkId,
    _chainIdRpc: networkId,

  console.log(`Ganache Started on${port} ..`);

  return ganacheServer;

I am testing another process in parallel - a relayer - which listens to events on one ganache instance and issues transactions on the other ganache instances. I am trying to debug some functionality on the relayer and I believe the instamine feature of ganache could be having an effect.

My problem is that I attempt to change the above code to include a blockTime: 2, entry into the options of the server() call. And now in test setup I see errors such as Error: the tx doesn't have the correct nonce. account has nonce of: 15 tx has nonce of: 14.

I am in the process of attempting similar changes but bumping the version to "ganache": "^7.0.0-beta.2". I would appreciate any ideas on what could be the cause of the above error! Thank you.

Franky Limon Quamfy ( 🪞,🪞)
Hey guys when I run npm install truffle-hdwallet-provider --save
I get npm ERR! code ENOENT npm ERR! syscall spawn git npm ERR! path git npm ERR! errno -4058 npm ERR! enoent An unknown git error occurred npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoent
Not quite sure why I'm getting this error everything is updated. J

I am writing a unit tests for my Solidity smart contract using Truffle and Solidity and I can't find info how I can call a function from a different account. Able to create JS tests with multiple accounts fine. Anyone able to provide some insight?

Example Solidity test:
uint result = contract.doSomething() // How can I call this from another address?


I found my solution:
First, get another account
const [owner, otherAccount] = await hre.ethers.getSigners();

Then connect them to the contract and do the call.

Michel Brown
Hi,guys. In truffle, can you tell me why you use unbox? is it really useful?
Michel Brown
@wholespace: Who are you
Naruhito Takei
Hello Everyone.
@michaelbrown429:matrix.org It is just boilerplate for dapp. There are many boilerplates like that.
1 reply
Hey quick question with an issue I'm having deploying a contract.
"Kickstarter" -- Invalid number of parameters for "undefined". Got 0 expected 4!.
From some research it appears to be passing the incorrect arguments to the constructor of my contract, in this case my contract's constructor takes no arguments and it doesn't appear to be the problem.
One reason I think there could be an issue though is the contract I'm importing from kickStarter.sol has multiple contracts inside of it.
i.e. it has Contract A {} Contact B is A {} so maybe truffle doesn't know which contract to deploy?
@FreewayHeilig_twitter Before I also met similar occasion, everything not worked, so I reinstall npm. After that solved.
Hey guys
I have an issue with truffle. So truffle is supposed to compile modified contracts only right (after first compile). Mine is compiling all contracts everytime, which is kinda annoying. Any idea how to solve this?
Marcelo Cozzani
Hello everyone, any idea why when i try to compile my contracts using command - truffle compile it gives me this error
SyntaxError: Unexpected identifier
at Object.compileFunction (node:vm:352:18)
at wrapSafe (node:internal/modules/cjs/loader:1031:15)
at Module._compile (node:internal/modules/cjs/loader:1065:27)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at Object.require (node:internal/modules/cjs/helpers:102:18)
at Function.load (C:\Users\admin\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\config\dist\index.js:159:1)
at Function.detect (C:\Users\admin\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\config\dist\index.js:148:1)
at Object.module.exports [as run] (C:\Users\admin\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\commands\compile\run.js:8:1)
at Command.run (C:\Users\admin\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\command.js:189:1)
Truffle v5.4.29 (core: 5.4.29)
Node v16.13.1
Thanks in advance