Error while deploying FundMe

[Bhavu2412]

transact to FundMe.fund errored: Send transaction failed: Error: [number-to-bn] while converting number [] to BN.js instance, error: invalid number value. Value must be an integer, hex string, BN or BigNumber instance. Note, decimals are not supported. Given value: "" . if you use an injected provider, please check it is properly unlocked. This is the error I am getting when I deploy the FundMe contract . Please help me with this

[Nlferu]

Hi @Bhavu2412

Can you at least share repo or code? But I assume you are passing wrong arguments in deploy function..

[Bhavu2412]

Code for fund me.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
//Get funds from users
// Withdraw funds from users
// Set a min funding value in USD

//Most comon library used is safemath.sol and you can see it in many places.

import "./PriceConverter.sol";

contract FundMe {
using PriceConverter for uint256;
uint256 public minUSD = 50 * 1e18;// 1* 10 ** 18

address[] public funders;
mapping(address=>uint256) public addressToAmountFunded;

address public owner;

constructor(){
    //part of contract which is called imidietly when you deploy the contract.
    // helps to set up the contract the way we want it to be.
    owner = msg.sender;
}

function fund() public payable { //Smart contract can hold funds just like wallets.
    require(msg.value.convertPrice() >= minUSD , "Didnt send enough");// 1e18 is 1 10^18 this is value of 1 eth in wei here require is a checker if msg.value > 1 require means if first secssion is wrong then revert(Undo any gas back and send any gass back) to the previous section. 
    
    //msg.value means how much ethereum of currency is send
    funders.push(msg.sender); //msg.sender is the address of whoever calls the fund function.
    addressToAmountFunded[msg.sender] += msg.value;
    //Want to set am min fund amount in USD
    //How to send eth to this contrat
}//0xae0a44e24aae0a38ca78643524cc8f73a1247e42
 //0xaE0a44E24aAE0a38ca78643524cC8f73a1247e42


function withdraw() public onlyOwner {
    // = : owner is set to a value :: == : check to see if two value are equal. 
    
    for(uint256 funderIndex = 0 ; funderIndex<funders.length ; funderIndex++){
        address funder = funders[funderIndex];
        addressToAmountFunded[funder] = 0;
    }
    //reset the array
    funders = new address[](0);//(0) means 0 element in the array to start with 
    //actually withdraw the funds there are 3 ways to do this i.e. transfer , send , call

    //transfer : throws error
    //msg.sender = address :: payable(msg.sender) = payable address
    // payable(msg.sender).transfer(address(this).balance);

    //send : returns bool
    // bool sendSuccess = payable(msg.sender).send(address(this).balance);
    // require(sendSuccess, "ETH not send(send)!");

    //first low level comands , is powerfull , call : 
    (bool callSuccess ,) = payable (msg.sender).call{value : address(this).balance}("");
     require(callSuccess, "ETH not send(call)!");
}

modifier onlyOwner {// Before working on any function please look in this modifier and if true then only read the function.
//_; do all the code first and then check below
require(msg.sender == owner , "sender is not owner");
_;//represents doing the rest of the code
}

}
// In order to convert USD to etherium or ethrium to usd then we need Oracle as this is just a decentralized system that have no contact with the real world
//Send transaction failed: Error: [number-to-bn] while converting number [] to BN.js instance, error: invalid number value. Value must be an integer, hex string, BN or BigNumber instance. Note, decimals are not supported. Given value: "" . if you use an injected provider, please check it is properly unlocked.

Code for Price-Converter.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";

library PriceConverter{
//library cannot have any state variable and also can't send ETH and all the function will be internal
function getPrice() public view returns(uint256) {
//ABI
//Address - 0x447Fd5eC2D383091C22B8549cb231a3bAD6d3fAf
AggregatorV3Interface priceFeed = AggregatorV3Interface(0x447Fd5eC2D383091C22B8549cb231a3bAD6d3fAf);
( , int256 answer , , , ) = priceFeed.latestRoundData(); // This is the price of ETH in terms of USD
return uint256(answer * 10000000000); // 1**10 = 10000000000

} 

function convertPrice(uint ethAmount) public view returns (uint256){
    uint256 ethPrice = getPrice();
    uint256 ethAmountinUSD = (ethPrice * ethAmount)/1000000000000000000;
    return ethAmountinUSD;
}
function getVersion() public view returns(uint256) {
    AggregatorV3Interface getVer = AggregatorV3Interface(0x447Fd5eC2D383091C22B8549cb231a3bAD6d3fAf);
    return getVer.version();
}

}

[Bhavu2412]

ig there is a problem in the .convertPrice() function

[Nlferu]

Hi @Bhavu2412

First of all you are using incorrect price feed address, no idea what that address is but it is not price feed for sepolia, you can find proper price feed addresses here: link for eth/usd it will be 0x694AA1769357215DE4FAC081bf1f309aDC325306.

If this did not solve your issue please link your repository as I still do not know your deploy script