lesson 7 : typeError : abicoder is not a constructor

[doppedheart]

getting an error while testing the fund function
this is my test file

const {assert ,expect} =require('chai');


describe('fundMe',()=>{
    let fundMe;
    let deployer;
    let mockV3Aggregator;
    beforeEach(async()=>{
        deployer=(await getNamedAccounts()).deployer;
        await deployments.fixture(["all"]);
        fundMe =await ethers.getContract('FundMe',deployer);
        mockV3Aggregator = await ethers.getContract('MockV3Aggregator',deployer);
    })
    describe('constructor',()=>{
        it('sets the aggregator',async()=>{
            const priceFeed=await fundMe.priceFeed();
            assert.equal(priceFeed,mockV3Aggregator.address);
        })
    })

    describe('fund',()=>{
        it('funds the contract',async()=>{
            await expect(fundMe.fund()).to.be.reverted;
        })
    })
})```

package.json file
```{
  "name": "fundme-hardhat",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "devDependencies": {
    "@chainlink/contracts": "^0.6.1",
    "@nomicfoundation/hardhat-chai-matchers": "^2.0.0",
    "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
    "@nomicfoundation/hardhat-toolbox": "^3.0.0",
    "@nomicfoundation/hardhat-verify": "^1.0.0",
    "@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers",
    "@typechain/ethers-v6": "^0.4.0",
    "@typechain/hardhat": "^8.0.0",
    "chai": "^4.2.0",
    "ethers": "^5",
    "hardhat": "^2.15.0",
    "hardhat-deploy": "^0.11.30",
    "hardhat-deploy-ethers": "^0.3.0-beta.13",
    "hardhat-gas-reporter": "^1.0.8",
    "typechain": "^8.1.0"
  },
  "dependencies": {
    "@nomicfoundation/hardhat-ethers": "^3.0.2",
    "dotenv": "^16.1.4"
  }
}

and hardhat.config.js file

require("dotenv").config();
require("hardhat-gas-reporter");
require("solidity-coverage");
require("hardhat-deploy");
require("@nomiclabs/hardhat-ethers");
/** @type import('hardhat/config').HardhatUserConfig */

const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL;
const PRIVATE_KEY = process.env.PRIVATE_KEY;
const COINMARKET_CAP_API_KEY = process.env.COINMARKET_CAP_API_KEY;
module.exports = {
  defaultNetwork: "hardhat",
  networks: {
    sepolia: {
      url: SEPOLIA_RPC_URL,
      accounts: [PRIVATE_KEY],
      chainId: 11155111,
      blockConfirmations: 6,
    },
  },
  namedAccounts: {
    deployer:{
      default:0,
    }
  },
  solidity: "0.8.18",
  gasReporter: {
    currency: "USD",
    enabled: true,
    outputFile: "gas-report.txt",
    noColors: true,
    coinmarketcap: COINMARKET_CAP_API_KEY,
  },
};

[alymurtazamemon]

@doppedheart Not sure about this error, please share the repository link.

In case you do not know how to push then take some guide here #2637

[alfaqi]

The error is in the chai matchers, it is using ethers version 6 and inside node_modules/@nomicfoundation/hardhat-chai-matchers/src/internal/reverted/utils.ts:65:15 it is using this code which imports the AbiCoder and initiate it.

it is alymurtazamemon post
at #5683 (reply in thread)
see here #5683