failed to get Goerli chainId when deploying SimpleStorage

[Direr]

Hello,
On hardhat, deploying simpleStorage in local network works fine. When I want to deploy on Goerli network, I get this error message:

failed to get chainId, falling back on net_version...

I browsed the forum and found other people who encounter the same error message but didn't find an answer which solved my case. Could someone help me please?

in the .env file, the GOERLI_RPC_URL is of the form

GOERLI_RPC_URL=https://eth-goerli.g.alchemy.com/v2/<myKey>

I tried several Alechemy keys without success. My hardhat.config.js file:

require("hardhat-gas-reporter")
require("@nomiclabs/hardhat-etherscan")
require("solidity-coverage")
require("hardhat-deploy")

const GOERLI_RPC_URL =
    process.env.GOERLI_RPC_URL ||
    "https://eth-mainnet.alchemyapi.io/v2/your-api-key"
const PRIVATE_KEY =
    process.env.PRIVATE_KEY ||
    "0x11ee3108a03081fe260ecdc106554d09d9d1209bcafd46942b10e02943effc4a"
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || ""

module.exports = {
    defaultNetwork: "hardhat",
    networks: {
        hardhat: {
            chainId: 31337,
            // gasPrice: 130000000000,
        },
        goerli: {
            url: GOERLI_RPC_URL,
            accounts: [PRIVATE_KEY],
            chainId: 5,
            blockConfirmations: 6,
        },
    },
    solidity: {
        compilers: [
            {
                version: "0.8.7",
            },
            {
                version: "0.6.6",
            },
        ],
    },
    etherscan: {
        apiKey: ETHERSCAN_API_KEY,
    },
    gasReporter: {
        enabled: true,
        currency: "USD",
        outputFile: "gas-report.txt",
        noColors: true,
        // coinmarketcap: COINMARKETCAP_API_KEY,
    },
    namedAccounts: {
        deployer: {
            default: 0,
            1: 0, 
        },
    },
    mocha: {
        timeout: 500000,
    }
}

My 01-deploy-simpleStorage.js file:

const { network } = require("hardhat")

module.exports = async ({ getNamedAccounts, deployments }) => {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId  // chainId of the chain the script was deployed on
    log(`Chain Id: ${chainId}`)

    log("----------------------------------------------------")
    log("Deploying SimpleStorage.sol and waiting for confirmations...")
    const simpleStorage = await deploy("SimpleStorage", {
        from: deployer,
        args: [],
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    })
    log(`ERC20.sol deployed at ${simpleStorage.address}`)
}

module.exports.tags = ["all", "simple"]

Full message error:

[othaime-en]

Hey @Direr make sure you have require("dotenv").config() this line in your hardhat.config file
Also make sure that you have the dotenv module installed. If not, you can run yarn add --dev dotenv

[alymurtazamemon]

@Direr I am noticing that you do not have this in hardhat file require("dotenv").config();

[krakxn]

Try the fix in the replies; if it persists, please push to GitHub and link it here.

[Direr]

hey guys, big thanks, @othaime-en, @alymurtazamemon and @krakxn for your answers and responsiveness. I didn't download dotenev as you mentionned!
Problem solved.

[krakxn]

All the best!