Lesson 8 Fund, using HardHat local Account

[armontej]

Following the video at 13:17:38, after connecting my MetaMask to the HardHat-Localhost, when i try to click the Fund button in Fund Me App, i run into this error.
"MetaMask - RPC Error: Internal JSON-RPC error. "
"Uncaught (in promise) Error: cannot estimate gas; transaction may fail or may require manual gas limit [ See: https://links.ethers.org/v5-errors-UNPREDICTABLE_GAS_LIMIT ] (reason="Error: Transaction reverted: function selector was not recognized and there's no fallback function"

Here is my code from index.js below

***import { ethers } from "./ethers-5.6.esm.min.js"
import { abi, contractAddress } from "./constants.js"

const connectButton = document.getElementById("connectButton")
const fundButton = document.getElementById("fundButton")
connectButton.onclick = connect
fundButton.onclick = fund

console.log(ethers)

async function connect() {
if (typeof window.ethereum !== "undefined") {
await window.ethereum.request({ method: "eth_requestAccounts" })
connectButton.innerHTML = "Connected!"
} else {
connectButton.innerHTML = "Please install metamask!"
}
}
// Fund function
async function fund() {
const ethAmount = "77"
console.log(Funding with ${ethAmount}...)
if (typeof window.ethereum !== "undefined") {
// provider / connection to the blockchain
// signer / wallet / someone with some gas
// contract we are interacting with
// ^ ABI & Address
const provider = new ethers.providers.Web3Provider(window.ethereum)
const signer = provider.getSigner()
const contract = new ethers.Contract(contractAddress, abi, signer) // This is how we get our contract, we need to get the ABI and address that we are working with
const transactionResponse = await contract.fund({
value: ethers.utils.parseEther(ethAmount),
})
}
}

---

I am not sure if its a error in my code after doing some research online, but i am having trouble narrowing down where the error is coming from.

[pyromaus]

Was getting the same problem, this made it work:

1. stop hardhat node, disconnect metamask from your website
2. start a fresh hardhat node, create a new account on metamask using the private key of the 2nd node account (instead of the 1st)
3. use this 2nd account to connect and hit Fund on your front-end

Try this and let us know if it helped

[armontej]

thank you good sir this fixed my issue

[pyromaus]

awesome. also, while using the 1st account that's bugging, going into metamask -> settings -> advanced -> reset account may or may not have the same effect. haven't tried it so not sure.