LESSON 9: "before each" hook for "works with live chainlink keepers and Chainlink VRF, we get a random winner"

[cryptocambi]

Hi,

When I run the command: yarn hardhat deploy --network sepolia
I get the following error:

Raffle unit test
    FulfillRandomWord
      1) "before each" hook for "works with live chainlink keepers and Chainlink VRF, we get a random winner"


  0 passing (914ms)
  1 failing

  1) Raffle unit test
       "before each" hook for "works with live chainlink keepers and Chainlink VRF, we get a random winner":
      at Object.getContract (node_modules\@nomiclabs\hardhat-ethers\src\internal\helpers.ts:447:11)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)
      at Context.<anonymous> (test\staging\Raffle.staging.js:12:24)



error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
PS C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc> yarn hardhat test --network sepolia
yarn run v1.22.19
warning package.json: No license field
$ C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\.bin\hardhat test --network sepolia


  Raffle unit test
    FulfillRandomWord
      1) "before each" hook for "works with live chainlink keepers and Chainlink VRF, we get a random winner"


  0 passing (667ms)
  1 failing

  1) Raffle unit test
       "before each" hook for "works with live chainlink keepers and Chainlink VRF, we get a random winner":
     Error: No Contract deployed with name Raffle
      at Object.getContract (node_modules\@nomiclabs\hardhat-ethers\src\internal\helpers.ts:447:11)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)
      at Context.<anonymous> (test\staging\Raffle.staging.js:12:24)

So I run: yarn hardhat deploy and all works:
$ C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\.bin\hardhat deploy
Nothing to compile
Local network detected: Deeploying mocks....
deploying "VRFCoordinatorV2Mock" (tx: 0xf50670372fe601f04f6469a19634012866cc208bc3ed8f1c902ef2b2fb6bb71f)...: deployed at 0x5FbDB2315678afecb367f032d93F642f64180aa3 with 2540078 gas
Mock deployed!
----------------------------------------
deploying "Raffle" (tx: 0xf8755ebf00117f058ced374993b00268933caba84fd35c09e54a55ec38e14f2a)...: deployed at 0xCf7Ed3AccA5a467e9e704C703E8D87F634fB0Fc9 with 1229750 gas
----------------------------
Consumer is added
Done in 4.76s.

but if I run yarn hardhat deploy --network sepolia, I got the following error:

$ C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\.bin\hardhat deploy --network sepolia
Nothing to compile
An unexpected error occurred:

Error: ERROR processing C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\deploy\01.deploy.raffle.js:
TypeError: Cannot read properties of undefined (reading 'vrfCoordinatorV2')
    at Object.module.exports [as func] (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\deploy\01.deploy.raffle.js:21:57)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at DeploymentsManager.executeDeployScripts (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1222:22)
    at DeploymentsManager.runDeploy (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1055:5)
    at SimpleTaskDefinition.action (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\index.ts:438:5)
    at Environment._runTaskDefinition (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)
    at Environment.run (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)
    at SimpleTaskDefinition.action (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\index.ts:584:32)
    at Environment._runTaskDefinition (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)
    at Environment.run (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)
    at DeploymentsManager.executeDeployScripts (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1225:19)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at DeploymentsManager.runDeploy (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\DeploymentsManager.ts:1055:5)
    at SimpleTaskDefinition.action (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\index.ts:438:5)
    at Environment._runTaskDefinition (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)
    at Environment.run (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)
    at SimpleTaskDefinition.action (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\index.ts:584:32)
    at Environment._runTaskDefinition (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:330:14)
    at Environment.run (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat\src\internal\core\runtime-environment.ts:163:14)
    at SimpleTaskDefinition.action (C:\Users\K\hh-fcc\hardhat-smartcontract-lottary-fcc\node_modules\hardhat-deploy\src\index.ts:669:5)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

So I checked my 01deploy.raffle.js, and seems correct to me:

const { network, ethers } = require("hardhat")
const { developmentChains, networkConfig } = require("../helper-hardhat-config")
const { verify } = require("../helper-hardhat-config")

const VRF_SUB_FUND_AMOUNT = ethers.utils.parseEther("30")

module.exports = async function ({ getNamedAccounts, deployments }) {
    const { deploy, log } = deployments
    const { deployer } = await getNamedAccounts()
    const chainId = network.config.chainId
    let vrfCoordinatorV2Address, subscriptionId, vrfCoordinatorV2Mock

    if (chainId == 31337) {
        vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock")
        vrfCoordinatorV2Address = vrfCoordinatorV2Mock.address
        const transactionResponde = await vrfCoordinatorV2Mock.createSubscription()
        const transactionReceipt = await transactionResponde.wait()
        subscriptionId = transactionReceipt.events[0].args.subId
        await vrfCoordinatorV2Mock.fundSubscription(subscriptionId, VRF_SUB_FUND_AMOUNT)
    } else {
        vrfCoordinatorV2Address = networkConfig[chainId]["vrfCoordinatorV2"]
        subscriptionId = networkConfig[chainId]["subscriptionId"]
    }
    const entranceFee = networkConfig[chainId]["entranceFee"]
    const gasLane = networkConfig[chainId]["gasLane"]
    const callbackGasLimit = networkConfig[chainId]["callbackGasLimit"]
    const interval = networkConfig[chainId]["interval"]
    const args = [
        vrfCoordinatorV2Address,
        subscriptionId,
        gasLane,
        interval,
        entranceFee,
        callbackGasLimit,
    ]

    const raffle = await deploy("Raffle", {
        from: deployer,
        args: args,
        log: true,
        waitConfermation: network.config.blockConfirmations || 1,
    })

    if (!developmentChains.includes(network.name) && process.env.ETHERSCAN_API_KEY) {
        log("Verify....")
        await verify(raffle.address, args)
    }
    log("----------------------------")

    if (developmentChains.includes(network.name)) {
        //const vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock") from github
        await vrfCoordinatorV2Mock.addConsumer(subscriptionId, raffle.address)

        log("Consumer is added")
    }
}

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

went to check if I defined the the vrfCoordinatorV2 address, in my hardhat-helper.js:

const { ethers } = require("hardhat")

const networkConfig = {
    1115111: {
        name: "sepolia",
        vrfCoordinatorV2: "0x8103B0A8A00be2DDC778e6e7eaa21791Cd364625",
        subscriptionId: "2319",
        gasLane: "0x474e34a077df58807dbe9c96d3c009b23b3c6d0cce433e59bbf5b34f823bc56c",
        interval: "30",
        entranceFee: ethers.utils.parseEther("0.01"),
        callbackGasLimit: "500000",
    },
    31337: {
        name: "hardhat",
        entranceFee: ethers.utils.parseEther("0.01"),
        gasLane: "0x474e34a077df58807dbe9c96d3c009b23b3c6d0cce433e59bbf5b34f823bc56c",
        callbackGasLimit: "500000",
        interval: "30",
    },
}
const developmentChains = ["hardhat", "localhost"]

module.exports = {
    networkConfig,
    developmentChains,
}

last check that I have done is my hardhat.config.js, and seems correct:

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

const SEPOLIA_RPC_URL =
    process.env.SEPOLIA_RPC_URL ||
    "https://eth-sepolia.g.alchemy.com/v2/-eThWc9tsabKX_oPoSJg97lC2vaDYpRT"
const PRIVATE_KEY = process.env.PRIVATE_KEY
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY

module.exports = {
    defaultNetwork: "hardhat",
    networks: {
        hardhat: {
            chainId: 31337,
            blockConfermation: 1,
        },
        sepolia: {
            chainId: 11155111,
            blockConfermation: 6,
            url: SEPOLIA_RPC_URL,
            accounts: [PRIVATE_KEY],
        },
    },
    gasReporter: {
        enabled: false,
        currency: "USD",
        outputFile: "gas-report.txt",
        noColors: true,
        // coinmarketcap: COINMARKETCAP_API_KEY,
    },
    solidity: "0.8.7",
    namedAccounts: {
        deployer: {
            default: 0,
        },
        player: {
            default: 1,
        },
    },
    mocha: {
        timeout: 300000,
    },
}

can someone guys help me out to understand what I am missing?
this is my repo: link

Thank you

[aaankeet]

@cryptocambi
invalid chainId in helper-hardhat-config

const networkConfig = {
1115111: {   <--- 11155111
name: "sepolia",
vrfCoordinatorV2: "0x8103B0A8A00be2DDC778e6e7eaa21791Cd364625",
subscriptionId: "2319",
gasLane: "0x474e34a077df58807dbe9c96d3c009b23b3c6d0cce433e59bbf5b34f823bc56c",
interval: "30",
entranceFee: ethers.utils.parseEther("0.01"),
callbackGasLimit: "500000",
},

[cryptocambi]

Thank man, I see.
I managed deploying it. Now I am stock on the staging test, but I will open a new discussion so others can relate it in future

[Fuga14]

TypeError: Cannot read properties of undefined (reading 'vrfCoordinatorV2')

This error indicates that the vrfCoordinator address is not correct.
My first errors were the same and here is a list of what parameters to go through and check if everything is ok:

1. Check if chainId is correct (in helper-hardhat-config your sepolia network is not correct, it should be 11155111)
2. Check if the variables are written correctly
3. Is the vrfCoordinator address correct for the network where you are doing the deploy
4. Check your api-key, rpcURL

[cryptocambi]

Thank man,
Yes as always is small things. But appreciate your help, was the first scenario

[alymurtazamemon]

@cryptocambi Please check the above solutions otherwise let me know.