Lesson 7: TypeError: ethers.getContract is not a function

[CubikRuubik]

Hi, really need someone's help here. I`m testing FundMe constructor and having this error:

  FundMe
    constructor
      1) "before each" hook for "sets the aggregator addresses correctly"


  0 passing (1s)
  1 failing

  1) FundMe
       "before each" hook for "sets the aggregator addresses correctly":
     TypeError: ethers.getContract is not a function
      at Context.<anonymous> (test\unit\FundMe.test.js:47:37)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)
      at runNextTicks (node:internal/process/task_queues:64:3)
      at listOnTimeout (node:internal/timers:538:9)
      at processTimers (node:internal/timers:512:7)



error Command failed with exit code 1.

code FundMe.test.js looks like this:

const { assert, expect } = require("chai")
const { network, deployments/*, ethers*/ } = require("hardhat")
const ethers = require('ethers')
const { developmentChains } = require("../../helper-hardhat-config")


describe("FundMe",async function(){
    let fundMe
    let mockV3Aggregator
    let deployer
    //const sendValue = ethers.utils.parseEther("1")
    beforeEach(async () => {
              // const accounts = await ethers.getSigners()
              // deployer = accounts[0]
              deployer = (await getNamedAccounts()).deployer
              await deployments.fixture(["all"])
              fundMe = await ethers.getContract("FundMe", deployer)
              mockV3Aggregator = await ethers.getContract(
                  "MockV3Aggregator",
                  deployer
              )
          })

          describe("constructor", function () {
              it("sets the aggregator addresses correctly", async () => {
                  const response = await fundMe.getPriceFeed()
                  assert.equal(response, mockV3Aggregator.address)
              })
          })

        })

I`ve read about similar issues, tried to correct my dependencies but without success. Any tips how I can solve that problem?
Already tied to downgrade my ethers version, reinstall it.
Deleted and reinstalled node_modules.
getContractAt() aslo not working.

[Noveleader]

Hey @CubikRuubik can you show your package.json file?

[CubikRuubik]

Hello @Noveleader , sure

  "devDependencies": {
    "@chainlink/contracts": "^0.6.1",
    "@ethersproject/abi": "^5.4.7",
    "@ethersproject/providers": "^5.4.7",
    "@nomicfoundation/hardhat-chai-matchers": "^1.0.0",
    "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
    "@nomicfoundation/hardhat-toolbox": "^2.0.0",
    "@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers",
    "@nomiclabs/hardhat-etherscan": "^3.0.0",
    "@typechain/ethers-v5": "^10.1.0",
    "@typechain/hardhat": "^6.1.2",
    "chai": "^4.2.0",
    "deploy": "^1.0.3",
    "hardhat": "^2.14.0",
    "hardhat-deploy": "^0.9.29",
    "hardhat-gas-reporter": "^1.0.8",
    "solidity-coverage": "^0.8.0",
    "typechain": "^8.1.0"
  },
  "dependencies": {
    "dotenv": "^16.0.3",
    "ethers": "5.7.2"
  }
}```

[alymurtazamemon]

@CubikRuubik You should use the ethers from the hardhat dependency not from the ethers dependency. Because this getContract function is provided by hardhat-deploy plugin which we override.

[CubikRuubik]

Hello, Ali. So you are saying I should remove 'ethers' dependency?

[alymurtazamemon]

@CubikRuubik No, just get the ethers from hardhat like this

const { ethers } = require("hardhat");

[CubikRuubik]

Wow, this really helped me, thank you so much!!!

[Noveleader]

Did it solve the problem?

[CubikRuubik]

@Noveleader, yes. But I remember that I had const { ethers } = require("hardhat"); such line before, but while i was looking for solution I've changed it. I think this issue was caused also by conficts of dependencies. I`m still a little confused about this.