lesson 9 .createSubscription is not a function

[jorgect207]

hello, someone can help me with this problem,

Nothing to compile
deploying mocks...
deploying "VRFCoordinatorV2Mock" (tx: 0x568782af0a079d0bc6f4e4e40b0e5953a1299aa5fd7a0eccc01ff0568a422e43)...: deployed at 0x5FbDB2315678afecb367f032d93F642f64180aa3 with 1803090 gas
mocks deployed!!!!
An unexpected error occurred:

Error: ERROR processing /home/jorgect/lottery-smartcontract/deploy/01-deploy-raffle.js:
TypeError: vrfCoordinator.createSubscription is not a function
    at Object.module.exports [as func] (/home/jorgect/lottery-smartcontract/deploy/01-deploy-raffle.js:24:50)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at runNextTicks (node:internal/process/task_queues:65:3)
    at listOnTimeout (node:internal/timers:528:9)
    at processTimers (node:internal/timers:502:7)
    at DeploymentsManager.executeDeployScripts (/home/jorgect/lottery-smartcontract/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1219:22)
    at DeploymentsManager.runDeploy (/home/jorgect/lottery-smartcontract/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/home/jorgect/lottery-smartcontract/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/home/jorgect/lottery-smartcontract/node_modules/hardhat/src/internal/core/runtime-environment.ts:308:14)
    at Environment.run (/home/jorgect/lottery-smartcontract/node_modules/hardhat/src/internal/core/runtime-environment.ts:156:14)
    at DeploymentsManager.executeDeployScripts (/home/jorgect/lottery-smartcontract/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1222:19)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at runNextTicks (node:internal/process/task_queues:65:3)
    at listOnTimeout (node:internal/timers:528:9)
    at processTimers (node:internal/timers:502:7)
    at DeploymentsManager.runDeploy (/home/jorgect/lottery-smartcontract/node_modules/hardhat-deploy/src/DeploymentsManager.ts:1052:5)
    at SimpleTaskDefinition.action (/home/jorgect/lottery-smartcontract/node_modules/hardhat-deploy/src/index.ts:438:5)
    at Environment._runTaskDefinition (/home/jorgect/lottery-smartcontract/node_modules/hardhat/src/internal/core/runtime-environment.ts:308:14)
    at Environment.run (/home/jorgect/lottery-smartcontract/node_modules/hardhat/src/internal/core/runtime-environment.ts:156:14)
    at SimpleTaskDefinition.action (/home/jorgect/lottery-smartcontract/node_modules/hardhat-deploy/src/index.ts:584:32)
error Command failed with exit code 1.

the mock is deploying correctly, this is my code:

const { network, ethers } = require("hardhat")

const { developmentNetwork, networkConfig } = require("../helper-hardhat-config")
const { verify } = require("../utils/verify")

/* uint32 num_winners,
        address _vrfCoordinator,
        bytes32 _keyHash,
        uint64 _s_subscriptionId,
        uint256 _interval
*/

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

    if (developmentNetwork.includes(network.name)) {
        const vrfCoordinator = await deployments.get("VRFCoordinatorV2Mock")

        vrfCoordinatorAddress = vrfCoordinator.address

        const transaction = await vrfCoordinator.createSubscription()
        const transaction_receipt = await transaction.wait(1)

        subscriptionId = transaction_receipt.events[0].args.subId

        await vrfCoordinator.fundSubscription(subscriptionId, "1000000000000000000000")
    } else {
        vrfCoordinatorAddress = networkConfig[chainId]["vrfCoordinatorAddress"]
        subscriptionId = networkConfig[chainId]["subscriptionId"]
    }

    const args = [
        "1",
        vrfCoordinatorAddress,
        networkConfig[chainId]["keyhash"],
        subscriptionId,
        "30",
    ]
    const deploy_raffle = deploy("Raffle", {
        from: deployer,
        args: args,
        log: true,
        waitConfirmation: network.config.blockConfirmation || 1,
    })

    log("contract deployed!!")

    if (!developmentNetwork.includes(network.name) && process.env.ETHERSCAN_VERICATION) {
        log("verifying.....")
        await verify(deploy_raffle.address, args)
        log("contract verify")
    }
}

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

[RoboCrypter]

@jorgect207 : Change this line from your deploy script,

From this :

const vrfCoordinator = await deployments.get("VRFCoordinatorV2Mock")

To:

const vrfCoordinator = await ethers.getContract("VRFCoordinatorV2Mock")

It will for sure reslove you issue!

[jorgect207]

i did but then the script only deploy the mocks

[othaime-en]

Can I see your mocks deploy script?

[alymurtazamemon]

@jorgect207 Use the ethers method to get the contract

const vrfCoordinator = await ethers.getContract(
  "VRFCoordinatorV2Mock"
);

And it is only deploying mocks because I think your arguments have issues, Make sure these are correct;

const args = [
    "1",
    vrfCoordinatorAddress,
    networkConfig[chainId]["keyhash"],
    subscriptionId,
    "30",
]

Their order should be similar to the one you have specified in the contract constructor, check their names and everything related to these as well.

[krakxn]

Try @alymurtazamemon 's solution. If it does not work, push to GitHub.