How to implement guide with smart contract deployment on ethereum using truffle - 'invalid opcode' scenarios
I'm not sure how to approach I'm trying to implement I've looked through the documentation and I'm still confused about I'm experiencing an 'Invalid opcode' behavior when trying to deploy my smart contract to the Ethereum test network using Truffle (v5.4.29). I've configured my Truffle project to use the Rinkeby test network, and I am following best practices for writing my Solidity code. Here is my simple smart contract: ```solidity // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; contract SimpleStorage { uint256 private storedData; function set(uint256 x) public { storedData = x; } function get() public view returns (uint256) { return storedData; } } ``` I have my `truffle-config.js` set up as follows: ```javascript const HDWalletProvider = require('@truffle/hdwallet-provider'); const infuraKey = 'YOUR_INFURA_KEY'; const mnemonic = 'YOUR_MNEMONIC'; // 12-word mnemonic module.exports = { networks: { rinkeby: { provider: () => new HDWalletProvider(mnemonic, `https://rinkeby.infura.io/v3/${infuraKey}`), network_id: 4, // Rinkeby's id gas: 5500000, // Gas limit gasPrice: 20000000000, // 20 gwei } }, compilers: { solc: { version: '0.8.0', } } }; ``` When I run `truffle migrate --network rinkeby`, the deployment fails with the following behavior: ``` behavior: Invalid opcode ``` I have tried increasing the gas limit and gas price, but the behavior continues. Additionally, I checked that my mnemonic and Infura key are correct. I also verified that the Rinkeby test network is operational using etherscan.io. The contract compiles without errors, so I suspect it might be an scenario during the deployment phase or some unintended behavior in the smart contract itself. Has anyone encountered a similar scenario, or does anyone have suggestions on how to debug this further? Any help would be greatly appreciated! This is happening in both development and production on Windows 10. Could this be a known issue? I'm on Linux using the latest version of Solidity. What are your experiences with this?