I've been working with solidity and truffle for a few days to develop a contract. I'm testing using the network created by Ganache an RPC client for build a local blockchain enviroment. There is on...

I'm trying to install the package @truffle/hdwallet-provider . As written in the doc, I'm running: npm i @truffle/hdwallet-provider Here is the error message I'm getting: npm ERR! code 128 npm ERR...

I am new to Truffle and going through the Metacoin tutorial; I followed all the steps but when I do truffle compile, I get the following: Error: Failed to fetch the Solidity compiler from the follo...

I installed truffle through npm with the following: sudo npm install -g truffle but when I run truffle list on the console it just gives me bash: truffle: command not found

Error: Truffle is currently using solc 0.5.16, but one or more of your contracts specify “pragma solidity ^0.8.0” Here is a photo of the error - https://gyazo.com/2f5ea2f50cc1d4ef5eea2f21d0e04fe7 A...

I'm working on a Blockchain project where I use Truffle. when I run the Truffle Console command I face this issue. Complete Log: This version of µWS is not compatible with your Node.js build: Error...

I have been running into the specified in the title. I have developed a smart contract and have successfully compiled and deployed it to the network as follows: 1. Run testrpc 2. truffle compile...

I am trying to install "truffle" with npm, but I am not familiar with NodeJS and cant figure out why npm wont install it. I try npm install -g truffle in Powershell with Admin rights and after a fe...

When i tried to install truffle i got these errors :- I have installed Node.js earlier and also i have pip installed. PS C:\Users\pk199\Documents> npm install -g truffle npm ERR! code 1 npm ERR...

I am trying to save gas by optimize code. In a flash, however, I was wondered what is the best practice of copying from array to array in Solidity. I present two option. One is copying by pointer (...

error - node-gyp-build: Permission denied while setting up truffle and ganache with docker on Apple Silicon npm ERR! code 127 npm ERR! path /root/.nvm/versions/node/v17.9.0/lib/node_modules/truffle...

I want to install ganache-cli and truffle using npm and am getting two types of errors (see codes pasted below). npm config If I run the command npm config, I get the following errors. Could th...

I'm building a staking function and hitting the following error after giving permission to access my token: "MetaMask - RPC Error: Cannot set properties of undefined (setting 'loadingDefaults...

I intend to develop my smart contracts in Hardhat, and to test them on RSK regtest local node. I was able to find a Truffle regtest configuration. development: { host: "127.0.0.1", port...

While I was working on smart contract using truffle, whenever request some number like account balance or address from the truffle console; I receive a BN object which looks like this: BN { negati...

I've commanded npm run dev to run my code. However, it pops up several errors the first error it pops up is Module not found: Error: Can't resolve '../../build/contracts/User.json' I don't know why...

I'm trying to send wei/eth to the address of my solidity contract which have an external payable fallback function. My truffle javascript test below doesn't result in the balance of instance.addres...

Here is the package I would like to use How can I import this in a TypeScript file (without using require) What is the proper syntax? None of these work: import contract from "@truffle/contrac...

I've checked that the connect-privkey-to-provider module is in the dependencies. However, it keeps saying Module 'connect-privkey-to-provider' is extraneous npm and cannot find module 'connect-priv...

I have written one simple smart contract in solidity and trying to migrate it with truffle. $ truffle migrate Compiling .\contracts\Election.sol... Compiling .\contracts\Migrations.sol... /D/ethe...

Im trying to integrate web3js with Trezor in a truffle dev network or using ropsten test network. The idea is to sign the transactions using the hardware wallet and then send a raw transaction us...

I have a solidity function called adopt a dog as below which is bascically a payable function in the contract. // THIS IS FAILING AS I DONT KNOW HOW TO PASS ETHERS IN HARDHAT/ETHER.JS Hardhart con...

I'm currently following this tutorial (https://medium.com/zeppelin-blog/the-hitchhikers-guide-to-smart-contracts-in-ethereum-848f08001f05) as I try to get into ethereum programming. Step 3 is inter...

I'm trying to deploy a contract to the ropsten testnet using truffle, but I get the following error: Deploying 'Migrations' ---------------------- Error: *** Deployment Failed *** "Migratio...

Can't correct the EACCESS issue from trying to install truffle. Yes I had installed initially npm via sudo and not nvm but that was corrected -unless who knows what- as per web. This path did not...