Lesson 4 - Fund me: Transaction keeps showing warning no matter the amount I entered

[Tosinkoa]

Whenever I tried to fund this contract, I keep getting this warning:
Gas estimation errored with the following message (see below). The transaction execution will likely fail. Do you want to force sending? The execution failed due to an exception. Reverted Here is my code snippet.`

    uint256 public minimumUsd = 50 * 1e18; 
    function fund() public payable {
       require(getConversionRate(msg.value) >= minimumUsd, "Didn't send enough");
    }

    function getPrice() public view returns (uint256) {
        AggregatorV3Interface priceFeed = AggregatorV3Interface(0x8A753747A1Fa494EC906cE90E9f37563A8AF630e);
        (,int price,,,) = priceFeed.latestRoundData();
        return uint256(price * 1e10);
    }

    function getVersion() public view returns (uint256) {
        AggregatorV3Interface priceFeed = AggregatorV3Interface(0x8A753747A1Fa494EC906cE90E9f37563A8AF630e);
        return priceFeed.version();
    }

    function getConversionRate(uint256 ethAmount) public view returns(uint256) {
        uint256 ethPrice = getPrice();
        uint256 ethAmountInusd = (ethPrice * ethAmount) / 1e18;
        return ethAmountInusd;
    }

[alymurtazamemon]

@Tosinkoa
I just tried it is working. try this amount 40000000000000000.

And make sure you are on Rinkeby and Injected Web3 is selected in the deploy and run transaction tab.

Let me know is it working for you or not.

[Tosinkoa]

I was using Kovan before, so when I switch it to Rinkeby, it works fine. Thank you so much.

[Dibu2002]

I am on Rinkeby network, tried with the same amount and also with higher amounts like 90000000000000000, but it is still showing the same warning. Can anyone suggest something?

[abdulhannan456]

make sure your meta mask account is on the same test network as the eth/usd contract network in Ethereum data feeds section on chain link