Error: Transaction reverted: function selector was not recognized and there's no fallback function

[chrismogab]

hi i am having a problem when i press the fund button and confirm the transaction. after confirming the amount is being deducted from the account balance but when i go to the node backend fund me terminal to check the contract passing through i get that the contract did not pass and i get this error :

" Error: Transaction reverted: function selector was not recognized and there's no fallback function"

PS: adding the fallback function didnt solve it and creating a new node and address and a new private key did not as well.

please help me solve the problem
this is my index.js file :

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

async function connect() {
    if (typeof window.ethereum !== "undefined") {
        await window.ethereum.request({ method: "eth_requestAccounts" })
        connectButton.innerHTML = "connected!!"
    } else {
        connectButton.innerHTML = "please connect to metamask"
    }
}
// fund function
//withdraw funtion
//front end use import backend use require

async function fund() {
    const ethAmount = "77"
    console.log(`funding with ${ethAmount}.....`)
    if (typeof window.ethereum !== "undefined") {
        // what do we need to send, we need provider/connection to blockchain
        // we need signer/wallet someon1 with gas
        //contract taht we r interacting with
        // ABI and address to get contract
        const provider = new ethers.providers.Web3Provider(window.ethereum)
        const signer = provider.getSigner()
        const contract = new ethers.Contract(contractAddress, abi, signer)
        //now that u have contract object u can run like before backend shuf
        const transactionResponse = await contract.fund({
            value: ethers.utils.parseEther(ethAmount),
        })
    }
}

[alymurtazamemon]

@chrismogab Did you reset the MetaMask?

[chrismogab]

yes i already tried that it did not work

[shoaibshebi]

@chrismogab

Please try change the chainId in your metamasks's localhost hardhat network, chainId -> 31337 if it is only 1337

Thanks

[IamGalexing]

Same issue here.
I could find out that msg.value = 0 in FundMe.sol after we actually pass value in our html-fund-me repo.
But I could not find the answer to why and fix it so far.
As someone mentioned, it works if comment out these lines in our FundMe.sol contract:

 require(
   msg.value.getConversionRate(s_priceFeed) >= MINIMUM_USD,
   "You need to spend more ETH!"
 );

Any idea how to actually get the value for msg.value in FundMe.sol? 🙂