Getting error at lesson 7

[haaarshit]

Getting this error at lesson 7 while running my test

TypeError: no matching function (argument="key", value="address", code=INVALID_ARGUMENT, version=6.6.7)

Here is the code

const { assert } = require("chai")
const { deployments, ethers, getNamedAccounts } = require("hardhat")

describe("FundeMe", async () => {
    let fundMe
    let deployer
    let mockV3Aggreagtor
    beforeEach(async () => {
        // deploy our fundme contract using  hardhat deploy
        // using Hardhat Deploy


        // deployments.fixture 
        // fixture -> allow us to deploy our entire folder with as many tag as we want

        deployer = (await getNamedAccounts()).deployer
        await deployments.fixture(["all"])
        fundMe = await ethers.getContract("FundMe", deployer) // will give us most recent deployed fundme contract
        mockV3Aggreagtor = await ethers.getContract("MockV3Aggregator", deployer)
    })

    describe("constructor", async () => {
        it("Sets the aggregator addresses correctly", async () => {
            const response = await fundMe.priceFeed()
            assert.equal(response, mockV3Aggreagtor.address)
        })
    })

})

[Nlferu]

Hello @coderharsx1122

Your code looks good, so the issue is either in your deploy scripts or your contract code, so please link your repository, so I can find what exactly is causing error.

And corrected explanation to your fixture definition:

// Below will just run thru all scripts in deploy folder with given tag "all", so everything will be deployed to testing
await deployments.fixture(["all"])

[alfaqi]

Current version of ethers you are using is 6.6.7, so you need to make some changes like address to target or await … getAddress()
I suggest that you use ethers version 5.7.2