The code I have: function approveRequest(uint256 index) public { Request storage request = requests[index]; require(approvers[msg.sender]); require
I've got a piece of code below that attempts to implement a two-player game (with a wager on the line) of Tic-Tac-Toe, also known as Noughts and Crosses. It is
I'm trying to follow a tutorial to create an NFT: https://ethereum.org/en/developers/tutorials/how-to-write-and-deploy-an-nft/ I took a faucet here: https://fau
I've been following a tutorial for the past couple of days and I keep getting this error. todoList = await TodoList.deployed() My contract is migrated to the
I'm trying to consume a function from a smart contract using ethers.js. The function retrieve the info of a user logged before (with the help of other function)
I Need to Write a Smart Contract, In This Smart Contract User Can Send Token to Each Account in ERC-20 Network. sender :0x5C2879Ec550e2F65D557b540B7DEAB3A6d478d
function finalizeRequest(uint index) public restricted { Request storage request = requests[index]; require(request.approvalCount > (approversCo
I'm trying to use this function but I am getting an ambiguous error. All I get is "errorCode":"32" Is there a reason this does not work? Am I missing something?
I'm developing the front-end to an application that I'm trying to test. However, MetaMask keeps giving me this error? I tried changing the gas limit like previo
I just wrote smart contract function with fire event like this. And create my node.js application with following code. const express = require('express') cons
I’m building a program intended to manage multiple payments with one call. The program needs to complete the following steps: Accept a certain amount of l
I'm trying to compile my sol file, but it's giving me this error. Why am I getting this error? DeclarationError: Identifier not found or not unique. --> p
I'm coding an bep20 token and if I want to add Liquidity with pancakeswap I get the following error: ProviderError: Error: VM Exception while processing transac
I'm on a course and have run into a problem. I am trying to make a function that shows the difference in team score from the perspective of the team in the vari
I have contract this part is simply creating smart contract for NFT. At the end of the createToken() I am emitting event. // SPDX-License-Identifier: MIT OR Apa
I am using tronlink chrome extension and trying to call balanceOf method of a smart contract. I am very new to smart contract. Unable to find any solution. Plea
I wrote a smart contract that uses openzepplin ERC20 standard. I am able to deploy it using truffle and my tests work as expected. I am now trying to test part
I'm trying to invoke the following solidity function from ethersjs (it takes another contract as argument): function getReservesData(IPoolAddressesProvider prov
Macbook Pro : Monterey Intel Core i7 Brownie v1.17.2 I am learning solidity according to reference(https://www.youtube.com/watch?v=M576WGiDBdQ&t=25510s). Wh
I am getting this error: Error: Returned values aren't valid, did it run Out of Gas? You might also see this error if you are not using the correct ABI for the