lesson 15: failed to get Goerli chainId when trying to run scripts/mint-and-list-item.js --network goerli

[Maakai123]

i was trying to run yarn hardhat run scripts/mint-and-list-item.js --network goerli,
it deployed successfully with yarn hardhat deploy
but i got the error when trying to run yarn hardhat run scripts/mint-and-list-item.js --network goerli

failed to get chainId, falling back on net_version...
Error: getaddrinfo ENOTFOUND eth-goerli.g.alchemy.com

hardhat Config.js

require("@nomiclabs/hardhat-waffle")
require("@nomiclabs/hardhat-etherscan")
require("hardhat-deploy")
require("solidity-coverage")
require("hardhat-gas-reporter")
require("hardhat-contract-sizer")
require("dotenv").config()

/**
 * @type import('hardhat/config').HardhatUserConfig
 */

const MAINNET_RPC_URL =
    process.env.MAINNET_RPC_URL ||
    process.env.ALCHEMY_MAINNET_RPC_URL ||
    "https://eth-mainnet.alchemyapi.io/v2/your-api-key"
const GOERLI_RPC_URL =
    process.env.GOERLI_RPC_URL || "https://eth-goerli.g.alchemy.com/v2/CtQwMhf8jlQtdbDL4xIMpOEtoDWNoa4C"
const KOVAN_RPC_URL =
    process.env.KOVAN_RPC_URL || "https://eth-kovan.alchemyapi.io/v2/your-api-key"
const POLYGON_MAINNET_RPC_URL =
    process.env.POLYGON_MAINNET_RPC_URL || "https://polygon-mainnet.alchemyapi.io/v2/your-api-key"
const PRIVATE_KEY = process.env.PRIVATE_KEY || "0x"
// optional
const MNEMONIC = process.env.MNEMONIC || "your mnemonic"

// Your API key for Etherscan, obtain one at https://etherscan.io/
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || "Your etherscan API key"
const POLYGONSCAN_API_KEY = process.env.POLYGONSCAN_API_KEY || "Your polygonscan API key"
const REPORT_GAS = process.env.REPORT_GAS || false

module.exports = {
    defaultNetwork: "hardhat",
    networks: {
        hardhat: {
            // // If you want to do some forking, uncomment this
            // forking: {
            //   url: MAINNET_RPC_URL
            // }
            chainId: 31337,
        },
        localhost: {
            chainId: 31337,
        },
        kovan: {
            url: KOVAN_RPC_URL,
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            //accounts: {
            //     mnemonic: MNEMONIC,
            // },
            saveDeployments: true,
            chainId: 42,
            
        },
        goerli: {
            url: GOERLI_RPC_URL,
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            //   accounts: {
            //     mnemonic: MNEMONIC,
            //   },
            saveDeployments: true,
            chainId: 5,
        },
        mainnet: {
            url: MAINNET_RPC_URL,
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            //   accounts: {
            //     mnemonic: MNEMONIC,
            //   },
            saveDeployments: true,
            chainId: 1,
        },
        polygon: {
            url: POLYGON_MAINNET_RPC_URL,
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            saveDeployments: true,
            chainId: 137,
        },
    },
    etherscan: {
        // npx hardhat verify --network <NETWORK> <CONTRACT_ADDRESS> <CONSTRUCTOR_PARAMETERS>
        apiKey: {
            rinkeby: ETHERSCAN_API_KEY,
            kovan: ETHERSCAN_API_KEY,
            polygon: POLYGONSCAN_API_KEY,
        },
    },
    gasReporter: {
        enabled: REPORT_GAS,
        currency: "USD",
        outputFile: "gas-report.txt",
        noColors: true,
        // coinmarketcap: process.env.COINMARKETCAP_API_KEY,
    },
    contractSizer: {
        runOnCompile: false,
        only: ["Raffle"],
    },
    namedAccounts: {
        deployer: {
            default: 0, // here this will by default take the first account as deployer
            1: 0, // similarly on mainnet it will take the first account as deployer. Note though that depending on how hardhat network are configured, the account 0 on one network can be different than on another
        },
        player: {
            default: 1,
        },
    },
    solidity: {
        compilers: [
            {
                version: "0.8.7",
            },
            {
                version: "0.4.24",
            },
        ],
    },
    mocha: {
        timeout: 200000, // 200 seconds max for running tests
    },
}

Mint-and-list-item.js

const { ethers, network } = require("hardhat")
const { moveBlocks } = require("../utils/move-blocks")

const PRICE = ethers.utils.parseEther("0.1")

async function mintAndList() {
    const nftMarketplace = await ethers.getContract("NftMarketplace")
    const randomNumber = Math.floor(Math.random() * 2)
    let basicNft
    if (randomNumber == 1) {
       // basicNft = await ethers.getContract("BasicNftTwo")
    } else {
        basicNft = await ethers.getContract("BasicNft")
    }
    console.log("Minting NFT...")
    const mintTx = await basicNft.mintNft()
    const mintTxReceipt = await mintTx.wait(1)
    const tokenId = mintTxReceipt.events[0].args.tokenId
    console.log("Approving NFT...")
    const approvalTx = await basicNft.approve(nftMarketplace.address, tokenId)
    await approvalTx.wait(1)
    console.log("Listing NFT...")
    const tx = await nftMarketplace.listItem(basicNft.address, tokenId, PRICE)
    await tx.wait(1)
    console.log("NFT Listed!")
    if (network.config.chainId == 31337) {
        // Moralis has a hard time if you move more than 1 at once!
        await moveBlocks(1, (sleepAmount = 1000))
    }
}

mintAndList()
    .then(() => process.exit(0))
    .catch((error) => {
        console.error(error)
        process.exit(1)
    })

[alymurtazamemon]

@Maakai123 See this discussion #2829

[alymurtazamemon]

@Maakai123 Also this #2638, here the issue was with Alchemy RPC_URL

[Maakai123]

my Alchemy RPC_URL is correct, i tried reinstalling dotenv package yarn add --dev dotenv
then i now got this error Error: No Contract deployed with name NftMarketplace

Note: everything was working fine until i changed from rinkeyby to goerli test network

[alymurtazamemon]

@Maakai123 leave your repo link.

[Maakai123]

@alymurtazamemon https://github.com/Maakai123/NFT-MARKETPLACE

[RoboCrypter]

@Maakai123 : Have you included The GOERLI_RPC_URL from Alchemy into your .env file, when you were shifting from rinkeby to goerli ?

This error : (Error: No Contract deployed with name NftMarketplace) means you have to deploy your contract first before running the scripts!

• First do : yarn hardhat clean
• Then do : yarn hardhat deploy

Then run your scripts!

[Maakai123]

my Goerli_RPC is in my .env file, i did as you said but got the same error

[RoboCrypter]

@Maakai123 : Then check your contract name in your deploy script as well in your contract and make sure everywhere it is same!

[krakxn]

Please push to GitHub. I will clone and check with my .env

[Maakai123]

@krakxn https://github.com/Maakai123/NFT-MARKETPLACE