I am trying to create a ERC20 standard token using VS code by following a Youtube video https://www.youtube.com/watch?v=8rpir_ZSK1g . Until I reached the .env f
I'm trying to swap tokens using swapExactTokensForTokens() (Pancakeswap Router function), web3 imported in Python. Here's my code and error below. Please be spe
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've been trying to download ganache on my windows machine, but I keep getting a 'failed authorization' error message.
The code I have: function approveRequest(uint256 index) public { Request storage request = requests[index]; require(approvers[msg.sender]); require
This is the error I was getting while installing truffle through nom -g install truffle. Does someone knows how to fix this issue and also got error after insta
I npm installed everything, yet only web3 is not working? Is this a bug or is there an alternative to this solution? import React,{useEffect, useState}from 're
I have set up my fabric network with 3 orderers in one organization and a consortium with 5 organizaitons successfully. Each organization has only one peer node
I am currently creating some custom flows, sending back and forth some data through the session. I noticed that in some cases (for example if a responder flow h
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
Here is my use case I have a smart contract that emit an event . I am new to chainlink , so my question if someone know how I can track that event history with
I am trying to use OpenSea API with the JS SDK. I am getting two types of errors. One is a deprecated warning. Another is a 404 error. This is the error I am ge
I am new to blockchain and Near Protocol. I have created 2 smart contracts on Near Protocol. The first one was successfully done but when I try to deploy the se
I have been written a smart contract, I am trying to execute the following code but I have these problems: 1- "Gas requirement of function EKM.register_PK is in
When I run the command yarn build:release i get the error "command not found: asb" enter image description here
I'm trying to develop DApp on polygon blockchain. Basically I'm minting NFT but after few mints I get this error. It even happens when I don't mint NFT. Here is
I am asking this question so that I want to easily know how many transactions occurred at a particular Bitcoin price. For example, at the price of $20T per BTC,
I built a test solidity pure function to display a greeting message. It only returns a string "Hello User". Here is the contract code: //SPDX-License-Identifie
I want to connect a Solana wallet (phantom or any other) to a web aplication through the js web3 library. I've read docs for most wallets and it seems like it's
I want to automate my staking on The Sandbox. For that I need in the first step to interact with the mSand-Matic Pool Contract. It is this one: https://polygons