I'm Solidity Newbie. I'm learning how to implement Transparent Proxy using Openzeppelin's TransparentUpgradeableProxy contract, but am having some problems. Ste
The ZkSync documentation states that a deposit has to be made from an existing Ethereum account to a non-existing ZkSync account counterfactually in order to cr
I created a contract instance in hardhat console like so: const contract_fac = await ethers.getContractFactory("ContractName"); const contract = await contract_
When I do Ctrl+Shift+P on VSCode, I am unable to see Solidity as an option. If unfamiliar with Solidity, it is a language for writing smart contracts on the Eth
after maked directory and on terminal I typed 'npx hardhat' enter image description here but doesnt showed create project when i saw their tutorial, possible to
I was following the freecodecamp smart contract course, i was in lesson 6 brownie Fund me/ when i was setting up my test it showed me the next error: platform w
I'm currently building a ERC721 compliant contract and have published the contract here: https://ropsten.etherscan.io/address/0xa513bc0a0d3af384fefcd8bbc1cc0c97
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