getting Errors while trying to getPrice() and getConversionRate()

[FFFarhan]

The code is

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";

//get funds
//withdraw funds
//set minimum spend amount

contract FundMe{

    uint256 public minimumUsd = 5*10e18;

    function fund() public payable  {
        require(getConversionRate(msg.value) >= minimumUsd, "Not Enough Eth");
    }
    function withdraw() public payable {
        //allow users to send eth
        //set min limit 
        
    }

    function getPrice() public view returns (uint256) {
        // Sepolia ETH / USD Address
        // https://docs.chain.link/data-feeds/price-feeds/addresses
        AggregatorV3Interface priceFeed = AggregatorV3Interface(
            0x694AA1769357215DE4FAC081bf1f309aDC325306
        );
        (, int256 answer, , , ) = priceFeed.latestRoundData();
        // ETH/USD rate in 18 digit
        return uint256(answer * 10000000000);
    }
    function getConversionRate(uint256 ethAmount) public view returns (uint256) {
        uint256 ethPrice = getPrice();
        uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1e8;
        return ethAmountInUsd;
    }






}

the errors im getting while trying to run the functions are

call
[call]from: 0x5B38Da6a701c568545dCfcB03FcB875f56beddC4to: FundMe.getPrice()data: 0x98d...5fdca
from	0x5B38Da6a701c568545dCfcB03FcB875f56beddC4
to	FundMe.getPrice() 0x9396B453Fad71816cA9f152Ae785276a1D578492
execution cost	3049 gas (Cost only applies when called by a contract)
input	0x98d...5fdca
output	0x
decoded input	{}
decoded output	{
	"error": "Failed to decode output: Error: data out-of-bounds (length=0, offset=32, code=BUFFER_OVERRUN, version=abi/5.7.0)"
}
logs	[]
raw logs	[]
call to FundMe.getPrice errored: Error occurred: revert.

revert
	The transaction has been reverted to the initial state.
Note: The called function should be payable if you send value and the value you send should be less than your current balance.
You may want to cautiously increase the gas limit if the transaction went out of gas.

Pls HElp me out here

[EngrPips]

What chain did you run the transaction on?

[FFFarhan]

i was running it on a vm....

i tried it on a testnet and it worked, guess i missed out that part while seeing the course.

[EngrPips]

Interesting

[deadking2016]

I was having the same issue. Does that mean getPrice can only deploy on testnet?

[EngrPips]

If you deploy a mock price feed contract to the local chain you are working on and work with it everything will work as expected.

[igorlnunes]

Your code has an issue in the division, resulting a ethAmountInUsd outside the limit of a uint256 type.. I believe this error is causing the transaction revert:

uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1e8; //out of uint256 range

uint256 ethAmountInUsd = (ethPrice * ethAmount) / 1e18; 

I hope I was able to help.