LESSON 14: expected 0 constructor arguments, got 6

[DorianDaSilva]

ERROR

Error: expected 0 constructor arguments, got 6

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I restarted the lesson from the scratch using the inheritance for imports instead of hard coding the whole thing in the contract as before, hoping to solve the previous error the terminal was returning after reintroducing const args = [ ] into 02-deploy-random-ipfs-nft.js and including tokenUris as an argument.

At the end of the day I ran into the same error but now it is 6 arguments instead of the 2 in the previous error.

My question is: "How come it is not expecting our 6 arguments" since our contract takes 6 arguments?

The script runs fine until that point as you can see below:

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Deploy script

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

const imagesLocation = "./images/randomNft/"

const metadataTemplate = {
    name: "",
    description: "",
    image: "",
    attributes: [
        {
            trait_type: "Cuteness",
            value: 100,
        },
    ],
}

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

    if (process.env.UPLOAD_TO_PINATA == "true") {
        tokenUris = await handleTokenUris()
    }

    if (developmentChains.includes(network.name)) {
        const VRFCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock")
        vrfCoordinatorV2Address = VRFCoordinatorV2Mock.address
        const tx = await VRFCoordinatorV2Mock.createSubscription()
        const txReceipt = await tx.wait(1)
        subscriptionId = txReceipt.events[0].args.subId
    } else {
        vrfCoordinatorV2Address = networkConfig[chainId].VRFCoordinatorV2
        subscriptionId = networkConfig[chainId].subscriptionId
    }

    log("______________________________________________________")

    //await storeImages(imagesLocation)

    const args = [
        vrfCoordinatorV2Address,
        subscriptionId,
        networkConfig[chainId].gasLane,
        networkConfig[chainId].callbackGasLimit,
        tokenUris,
        networkConfig[chainId].mintFee,
    ]

    const randomIpfsNft = await deploy("RandomIpfsNFT", {
        from: deployer,
        args: args,
        log: true,
        waitConfirmations: network.config.blockConfirmations || 1,
    })

    log("_________________________________________________________")

    if (!developmentChains.includes(network.name) && process.env.ETHERSCAN_API_KEY) {
        log("Verifying...")

        await verify(randomIpfsNft.address, args)
    }

}

async function handleTokenUris() {
    tokenUris = []
    const { responses: imageUploadResponses, files } = await storeImages(imagesLocation)
    for (imageUploadResponsesIndex in imageUploadResponses) {
        //create metadata
        //upload metadata
        let tokenUriMetadata = { ...metadataTemplate }
        tokenUriMetadata.name = files[imageUploadResponsesIndex].replace(".png", "")
        tokenUriMetadata.description = `An adorable ${tokenUriMetadata.name} pup!`
        tokenUriMetadata.image = `ipfs://${imageUploadResponses[imageUploadResponsesIndex].IpfsHash}`
        console.log(`Uploading ${tokenUriMetadata.name}...`)

        const metadataUploadResponse = await storeTokenUriMetadata(tokenUriMetadata)
        tokenUris.push(`ipfs://${metadataUploadResponse.IpfsHash}`)
    }
    console.log("Token URIs Uploaded! They are:")
    console.log(tokenUris)
    return tokenUris
}

module.exports.tags = ["all", "RandomIpfsNFT", "main"]

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[krakxn]

Please push to GitHub; I will look into it

[DorianDaSilva]

@krakxn Solved it by adding constructor arguments manually to artifacts as seen below but would love to understand why the constructor arguments weren't automatically included to artifacts. Thank you!

{
  "_format": "hh-sol-artifact-1",
  "contractName": "RandomIpfsNFT",
  "sourceName": "contracts/RandomIpfsNFT.sol",
  "abi": [
    {
      "type": "constructor",
      "payable": false,
      "inputs": [
        {
          "type": "address",
          "name": "vrfCoordinatorV2"
        },
        {
          "type": "uint64",
          "name": "subscriptionId"
        },
        {
          "type": "bytes32",
          "name": "gasLane"
        },
        {
          "type": "uint32",
          "name": "callbackGasLimit"
        },
        {
          "type": "string[3]",
          "name": "dogTokenUris"
        },
        {
          "type": "uint256",
          "name": "mintFee"
        }
      ]
    },

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[RoboCrypter]

@DorianDaSilva : The way I fixed it, That is the optimal way, By this way it will result in later on problem!

[DorianDaSilva]

@meaning the issue was syntax in the RandomIpfsNFT.sol contract that marked it as abstract?

[RoboCrypter]

@DorianDaSilva : Yes, Exactly my friend!