Lesson 10 : Error in LotteryEntrance.js

[soumalya340]

**Unhandled Runtime Error
TypeError: Cannot read properties of undefined (reading 'toString')

Source
components/LotteryEntrance.js (28:69) @ eval

26 | if (isWeb3Enabled) {
27 | async function updateUI() {

28 | const entranceFeeFromCall = (await getEntranceFee()).toString()
| ^
29 | setEntranceFee(entranceFeeFromCall)
30 | console.log(entranceFee)
31 | }

Unhandled Runtime Error
TypeError: Cannot read properties of undefined (reading 'toString')

[soumalya340]

import { useWeb3Contract } from "react-moralis"
import { abi, contractAddress } from "../constants/index"
import { useMoralis } from "react-moralis"
import { useEffect, useState } from "react"

export default function LotteryEntrance() {
const { chainId: chainIdHex, isWeb3Enabled } = useMoralis()
const chainId = parseInt(chainIdHex)
const raflleAddress = chainId in contractAddress ? contractAddress[chainId][0] : null
const [entranceFee, setEntranceFee] = useState("0")
// const {runContractFunction: getEntranceFee} = useWeb3Contract({
// abi: abi,
// contractAddress: raflleAddress,
// functionName: "enterRaffle",
// params: {},
// // msgValue : ,
// })

const { runContractFunction: getEntranceFee } = useWeb3Contract({
    abi: abi,
    contractAddress: raflleAddress,
    functionName: "getEntranceFee",
    params: {},
})
useEffect(() => {
    if (isWeb3Enabled) {
        async function updateUI() {
            const entranceFeeFromCall = (await getEntranceFee()).toString()
            setEntranceFee(entranceFeeFromCall)
            console.log(entranceFee)
        }
        updateUI()
    }
}, [isWeb3Enabled])

return <dv>Hi from Lottery Entrance </dv>

}

[alymurtazamemon]

@soumalya340 Hey! This is a very common issue, please see the already answered discussions. You will find tons of answered discussions on it.

[krakxn]

As Ali pointed out, first go through the discussions; you will certainly find multiple answers.

If thoroughly going through them does not resolve your issue, please reply w/ the GitHub repo and we will look into it.