Category "web3"

Tried npm install -g truffle but getting this gyp error

I tried npm node-gyp -g but it didn't help. I am trying to install truffle in my mac. I am using mac os Catalina, node version 16.13.1, and npm version 8.1.2 np

Web3 Cannot get value of a public variable from contract

Solidity code: pragma solidity ^0.5.8; contract remainNew{ address public owner = msg.sender; uint public cubeCount = 0; modifier onlyBy(addr

Integrating MetaMask with Flutter Mobile Application

I want to add feature in my mobile app to send ether from one address to another address and for this I need to integrate metamask with my flutter mobile applic

ethers js exits with this error=> invalid BigNumber value (argument="value", value=undefined, code=INVALID_ARGUMENT, version=bignumber/5.5.0)

I tried to send a request to my contract using ethersjs like this: const web3Modal = new Web3Modal() const connection = await web3Modal.connect(