Getting msg.value as 0

[Atharv-02]

Hi sir,
I didn't understand why I am getting msg.value as 0 (Lesson 8)

below is my fundMe.sol file ---

// SPDX-License-Identifier: MIT
// Pragma
pragma solidity ^0.8.8;
import "hardhat/console.sol";
//Imports
import "./PriceConverter.sol";

// Error Codes
error FundMe__NotOwner();
// Interfaces, Liberaries, Contracts
/**@title A contract for crowdfunding
 * @author Atharv Gulati
 * @notice This contract is to demo a sample funding contract
 * @dev This impliments priceFeeds as our library
 * 
*/
contract FundMe {
    // Type declarations
    using PriceConverter for uint256;
    // State variables
    mapping(address => uint256) public addressToAmountFunded;
    address[] public funders;

    // Could we make this constant?  /* hint: no! We should make it immutable! */
    address public /* immutable */ i_owner;
    uint256 public constant MINIMUM_USD = 50 * 10 ** 18;
    AggregatorV3Interface public priceFeed;
    // Modifiers
    modifier onlyOwner {
        // require(msg.sender == owner);
        if (msg.sender != i_owner) revert FundMe__NotOwner();
        _;
    }
    // Rest of the functions
    constructor( address priceFeedAddress) {
        priceFeed=AggregatorV3Interface (priceFeedAddress);
        i_owner = msg.sender;
    }

    function fund() public payable {
        uint256 amount=100;
        console.log(amount.getConversionRate(priceFeed), MINIMUM_USD, msg.value);
        uint256 conv_value = msg.value.getConversionRate(priceFeed);
        console.log("Converted Value: ", conv_value);
        require(msg.value.getConversionRate(priceFeed) >= MINIMUM_USD, "You need to spend more ETH!");
        // require(PriceConverter.getConversionRate(msg.value) >= MINIMUM_USD, "You need to spend more ETH!");
        addressToAmountFunded[msg.sender] += msg.value;
        funders.push(msg.sender);
    }
    
 
    function withdraw() public onlyOwner {
        for (uint256 funderIndex=0; funderIndex < funders.length; funderIndex++){
            address funder = funders[funderIndex];
            addressToAmountFunded[funder] = 0;
        }
        funders = new address[](0);
        // // transfer
        // payable(msg.sender).transfer(address(this).balance);
        // // send
        // bool sendSuccess = payable(msg.sender).send(address(this).balance);
        // require(sendSuccess, "Send failed");
        // call
        (bool callSuccess, ) = payable(msg.sender).call{value: address(this).balance}("");
        require(callSuccess, "Call failed");
    }
    // Explainer from: https://solidity-by-example.org/fallback/
    // Ether is sent to contract
    //      is msg.data empty?
    //          /   \ 
    //         yes  no
    //         /     \
    //    receive()?  fallback() 
    //     /   \ 
    //   yes   no
    //  /        \
    //receive()  fallback()

    fallback() external payable {
        fund();
    }

    receive() external payable {
        fund();
    }

    function getPriceFeed() public view returns (AggregatorV3Interface) {
        return priceFeed;
    }
    
    function cheaperWithdraw()public payable onlyOwner {
        address[] memory all_funders=funders;
        for (uint256 funderIndex=0; funderIndex < all_funders.length; funderIndex++){
            address funder = all_funders[funderIndex];
            addressToAmountFunded[funder] = 0;
        }
        funders = new address[](0);
        // // transfer
        // payable(msg.sender).transfer(address(this).balance);
        // // send
        // bool sendSuccess = payable(msg.sender).send(address(this).balance);
        // require(sendSuccess, "Send failed");
        // call
        (bool callSuccess, ) = payable(msg.sender).call{value: address(this).balance}("");
        require(callSuccess, "Call failed");
        
    }
}

// Concepts we didn't cover yet (will cover in later sections)
// 1. Enum
// 2. Events
// 3. Try / Catch
// 4. Function Selector
// 5. abi.encode / decode
// 6. Hash with keccak256
// 7. Yul / Assembly

import { ethers } from "./ethers-6.7.esm.min.js";
import { abi, contractAddress } from "./constants.js";

const connectButton = document.getElementById("connectButton");
console.log(connectButton);
const fundButton = document.getElementById("fund");
connectButton.onclick = connect;
fundButton.onclick = fund;
async function connect() {
  if (typeof window.ethereum !== "undefined") {
    await window.ethereum.request({ method: "eth_requestAccounts" });
    connectButton.innerHTML = "Connected !";
    console.log("connected!!!");
  } else {
    document.getElementById("connectButton").innerHTML =
      "Please install metamask";
    console.log("I don't see Metamask!");
  }
}

// Fund
async function fund() {
  const ethAmount = "277";
  console.log(ethers);
  console.log(`funding with ${ethAmount}`);
  if (typeof window.ethereum !== "undefined") {
    // Provider/connection to Blockchain
    // Signer / Wallet / Someone with some gas
    //Web3Provider is similar to JSsonRpcProvider
    const provider = new ethers.providers.Web3Provider(window.ethereum);
    // Returns the wallet connected
    const signer = provider.getSigner();
    console.log(signer);
    const contract = new ethers.Contract(contractAddress, abi, signer);
    try {
      const transactionResponse = await contract.fund({
        value: ethers.utils.parseEther(ethAmount),
      });
    } catch (error) {
      console.log(error);
    }
  }
}

[alfaqi]

Can you be more specific which msg.value is returning 0 or which part of the code returning 0