Following along with Lesson 13: Hardhat DeFi and Aave, and getting this error: TypeError: ethers.isAddressable is not a function

[sthurley]

Hi,

I get an error: TypeError: ethers.isAddressable is not a function. when running "yarn hardhat run scripts/aaveBorrow.js

This is the error I get:

Can't find anything online about how to solve this issue. Would appreciate any help offered. Thank you!

Repo:
https://github.com/sthurley/hardhat-defi-fcc/tree/main

[Niferu]

Hello @sthurley

You have just wrong syntax, use below:

const {getWeth} = require("../scripts/getWeth")
async function main() {
    await getWeth()
}

main()
    .then(() => process.exit(0))
    .catch((error) => {
        console.error(error)
        process.exit(1)
    })

[sthurley]

I'm still getting the same error

[Niferu]

Hi @sthurley

Try fixing your packages versions then:

1. Delete yarn.lock and node_modules
2. Clear your package.json and copy/paste below package.json
3. Run command yarn to install packages matching course ethers v5

{
  "name": "hardhat-defi-fcc",
  "devDependencies": {
    "@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers@^0.3.0-beta.13",
    "@nomiclabs/hardhat-etherscan": "^3.0.0",
    "@nomiclabs/hardhat-waffle": "^2.0.2",
    "chai": "^4.3.4",
    "ethereum-waffle": "^3.4.0",
    "ethers": "^5.5.3",
    "hardhat": "^2.8.3",
    "hardhat-deploy": "^0.9.29",
    "hardhat-gas-reporter": "^1.0.7",
    "solidity-coverage": "^0.7.18"
  },
  "dependencies": {
    "@aave/protocol-v2": "^1.0.1",
    "@chainlink/contracts": "^0.3.1",
    "dotenv": "^14.2.0",
    "prettier-plugin-solidity": "^1.0.0-beta.19",
    "solhint": "^3.3.7"
  },
  "scripts": {
    "lint": "solhint 'contracts/*.sol'",
    "lint:fix": "solhint 'contracts/**/*.sol' --fix",
    "format": "prettier --write ."
  }
}

The issue lies in following package "@nomiclabs/hardhat-ethers" if you do below:
"@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers@^0.3.0-beta.13" -> this will be specific hardhat ethers version
If you do following:
"@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers", -> this is latest hardhat ethers for which syntax is different

[sthurley]

Amazing, thank you!

[Niferu]

Np, glad I could help ;)