Lesson 9 - Error: cannot find artifact "VRFCoordinatorV2Mock" #4982
Answered
by
alymurtazamemon
JamesSymes
asked this question in
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Hi, I see this question has been asked a few times. But the other answers didn't seem to fix my issue. 00-deploy-mocks.js: const { network } = require("hardhat")
const BASE_FEE = "250000000000000000" // 0.25 is this the premium in LINK?
const GAS_PRICE_LINK = 1e9 // link per gas, is this the gas lane? // 0.000000001 LINK per gas
module.exports = async ({ getNamedAccounts, deployments }) => {
const { deploy, log } = deployments
const { deployer } = await getNamedAccounts()
const chainId = network.config.chainId
// If we are on a local development network, we need to deploy mocks!
if (chainId == 31337) {
log("Local network detected! Deploying mocks...")
await deploy("VRFCoordinatorV2Mock", {
from: deployer,
log: true,
args: [BASE_FEE, GAS_PRICE_LINK],
})
log("Mocks Deployed!")
log("----------------------------------------------------------")
log("You are deploying to a local network, you'll need a local network running to interact")
log(
"Please run `yarn hardhat console --network localhost` to interact with the deployed smart contracts!"
)
log("----------------------------------------------------------")
}
}
module.exports.tags = ["all", "mocks"]01-deploy-raffle.js: const { network, ethers } = require("hardhat")
const {
networkConfig,
developmentChains,
VERIFICATION_BLOCK_CONFIRMATIONS,
} = require("../helper-hardhat-config")
const { verify } = require("../utils/verify")
const FUND_AMOUNT = ethers.utils.parseEther("1") // 1 Ether, or 1e18 (10^18) Wei
module.exports = async ({ getNamedAccounts, deployments }) => {
const { deploy, log } = deployments
const { deployer } = await getNamedAccounts()
const chainId = network.config.chainId
let vrfCoordinatorV2Address, subscriptionId, vrfCoordinatorV2Mock
if (chainId == 31337) {
// create VRFV2 Subscription
vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock")
vrfCoordinatorV2Address = vrfCoordinatorV2Mock.address
const transactionResponse = await vrfCoordinatorV2Mock.createSubscription()
const transactionReceipt = await transactionResponse.wait()
subscriptionId = transactionReceipt.events[0].args.subId
// Fund the subscription
// Our mock makes it so we don't actually have to worry about sending fund
await vrfCoordinatorV2Mock.fundSubscription(subscriptionId, FUND_AMOUNT)
} else {
vrfCoordinatorV2Address = networkConfig[chainId]["vrfCoordinatorV2"]
subscriptionId = networkConfig[chainId]["subscriptionId"]
}
const waitBlockConfirmations = developmentChains.includes(network.name)
? 1
: VERIFICATION_BLOCK_CONFIRMATIONS
log("----------------------------------------------------")
const arguments = [
vrfCoordinatorV2Address,
subscriptionId,
networkConfig[chainId]["gasLane"],
networkConfig[chainId]["keepersUpdateInterval"],
networkConfig[chainId]["raffleEntranceFee"],
networkConfig[chainId]["callbackGasLimit"],
]
const raffle = await deploy("Raffle", {
from: deployer,
args: arguments,
log: true,
waitConfirmations: waitBlockConfirmations,
})
// Ensure the Raffle contract is a valid consumer of the VRFCoordinatorV2Mock contract.
if (developmentChains.includes(network.name)) {
const vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock")
await vrfCoordinatorV2Mock.addConsumer(subscriptionId, raffle.address)
}
// Verify the deployment
if (!developmentChains.includes(network.name) && process.env.ETHERSCAN_API_KEY) {
log("Verifying...")
await verify(raffle.address, arguments)
}
log("Enter lottery with command:")
const networkName = network.name == "hardhat" ? "localhost" : network.name
log(`yarn hardhat run scripts/enterRaffle.js --network ${networkName}`)
log("----------------------------------------------------")
}
module.exports.tags = ["all", "raffle"]helper-hardhat-config.js const { ethers } = require("hardhat")
const networkConfig = {
default: {
name: "hardhat",
keepersUpdateInterval: "30",
},
31337: {
name: "localhost",
subscriptionId: "588",
gasLane: "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc", // 30 gwei
keepersUpdateInterval: "30",
raffleEntranceFee: ethers.utils.parseEther("0.01"), // 0.01 ETH
callbackGasLimit: "500000", // 500,000 gas
},
5: {
name: "goerli",
subscriptionId: "10363",
gasLane: "0x79d3d8832d904592c0bf9818b621522c988bb8b0c05cdc3b15aea1b6e8db0c15", // 30 gwei
keepersUpdateInterval: "30",
raffleEntranceFee: ethers.utils.parseEther("0.01"), // 0.01 ETH
callbackGasLimit: "500000", // 500,000 gas
vrfCoordinatorV2: "0x2Ca8E0C643bDe4C2E08ab1fA0da3401AdAD7734D",
},
1: {
name: "mainnet",
keepersUpdateInterval: "30",
},
}
const developmentChains = ["hardhat", "localhost"]
const VERIFICATION_BLOCK_CONFIRMATIONS = 6
const frontEndContractsFile = "../nextjs-smartcontract-lottery-fcc/constants/contractAddresses.json"
const frontEndAbiFile = "../nextjs-smartcontract-lottery-fcc/constants/abi.json"
module.exports = {
networkConfig,
developmentChains,
VERIFICATION_BLOCK_CONFIRMATIONS,
frontEndContractsFile,
frontEndAbiFile,
}This is the error I see after running '''yarn hardhat deploy''' |
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Answered by
alymurtazamemon
Mar 1, 2023
Replies: 2 comments 4 replies
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@JamesSymes Did you clean the artifacts and cache folders and compiled again? Run this command |
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4 replies
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I just tried. I got... jjmsymes@LAPTOP-5SIBF61J:~/hardhat-smartcontract-lottery-fcc$ npx hardhat clean
jjmsymes@LAPTOP-5SIBF61J:~/hardhat-smartcontract-lottery-fcc$ npx hardhat compile
Nothing to compileThen I tried yarn hardhat deploy again and got the same issue... An unexpected error occurred:
Error: ERROR processing /home/jjmsymes/hardhat-smartcontract-lottery-fcc/deploy/00-deploy-mocks.js:
Error: cannot find artifact "VRFCoordinatorV2Mock"Was I meant to do something else? |
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@JamesSymes I tried your provided code and it is working perfectly fine, here you can see.
|
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@JamesSymes Remove artifacts and cache folders, rename Contracts folder to |
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It worked! Sorry I must have changed "contracts" to "Contracts" while trying to fix previous errors. Thanks! |
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Answer selected by
alymurtazamemon
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i got this error error when i run |
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@JamesSymes Did you clean the artifacts and cache folders and compiled again? Run this command
npx hardhat cleanand thennpx hardhat compile