Error: Unable to decode result data on local Metamask Hardhat blockchain

The message “Error: Unable to decode result data” is usually returned by the MetaMask library when an error occurs when decoding data from the Ethereum blockchain. In this case, we use Hardhat to interact with a local instance of the blockchain, and we encounter a problem with the Metamask library.

Step 1: Check the MetaMask Library Documentation

Before diving into the code, be sure to check the official MetaMask library documentation for the specific error message you’re encountering. In particular, check the [Error 2] section of the documentation, which explains that this error can occur when using the encode function to decode data from the Ethereum blockchain.

Step 2: Check Helmet Configuration

Hardhat requires specific configuration to work with your local blockchain instance. Make sure you have configured your Hardhat correctly:

const hardhat = require('hardhat');
module.exports = {
// ... other settings ...
network: {
provider: '
ethersProvider: {
host: '127.0.0.1',
port: 8545,
gas: 2000000, // or a value suitable for your setup
gasPrice: 10000, // in way
maxGasLimit: 15000000, // in bytes
},
},
};

Step 3: Verify Ethereum Blockchain Data

See if you can recover data from the Ethereum blockchain without any problems. You can use the console.log function or a library such as ethers.js to check the blockchain data:

const Web3 = require('web3');
const web3 = new Web3();
// Get blockchain data from MetaMask
async function getBlockchainData() {
ask {
const result = await web3.eth.blockNumber();
console.log(result);
return result;
} catch (error) {
console.error(error); // Output: "Error: Unable to decode result data (value='0x', info={)"
}
}
getBlockchainData();

Step 4: Test the Display

Now let’s focus on the display() function in the App.jsx file:

// display.js
import {display} from 'bsc-blocks';
export function default display() {
// Your display logic is displayed here
}
// main.js (where you will use display())
import React, { useState, useEffect } from 'react';
import display from './display';
function App() {
const [blockNumber, setBlockNumber] = useState(0);
useEffect(() => {
getBlockchainData();
return () => {
// Clear all timers and events
};
}, []);
return (

Blockchain number: {blockNumber}
Display blockchain data
);
}
export the default application;

In this example, we add a display function that uses the getBlockchainData() function to retrieve and display data from the Ethereum blockchain.

Step 5: Check Your Code

Try running your code in a local development environment (such as Webpack Dev Server) or using a ready-made blockchain simulator such as Hardhat Local Blockchain. If you’re still having problems, please provide more details about your setup and code, including any error messages or related settings.

Hope this helps you troubleshoot Metamask on your local Hardhat blockchain!