hardhat compile does not rebuild types

[klugjo]

Whenever I make a change to a solidity contract, the types are not regenerated properly after running yarn hardhat compile

This is my package.json:

{
  "name": "lottery",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "devDependencies": {
    "@nomicfoundation/hardhat-chai-matchers": "^2.0.0",
    "@nomicfoundation/hardhat-ethers": "^3.0.3",
    "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
    "@nomicfoundation/hardhat-toolbox": "^3.0.0",
    "@nomicfoundation/hardhat-verify": "^1.0.0",
    "@typechain/ethers-v6": "^0.4.0",
    "@typechain/hardhat": "^8.0.0",
    "@types/chai": "^4.2.0",
    "@types/mocha": ">=9.1.0",
    "@types/node": ">=12.0.0",
    "chai": "^4.2.0",
    "dotenv": "^16.3.1",
    "ethers": "^6.6.2",
    "hardhat": "^2.16.1",
    "hardhat-deploy": "^0.11.34",
    "hardhat-deploy-ethers": "^0.4.1",
    "hardhat-gas-reporter": "^1.0.8",
    "solhint": "^3.4.1",
    "solidity-coverage": "^0.8.0",
    "ts-node": ">=8.0.0",
    "typechain": "^8.1.0",
    "typescript": ">=4.5.0"
  },
  "dependencies": {
    "@chainlink/contracts": "^0.6.1",
    "@chainlink/test-helpers": "^0.0.7-alpha",
    "@chainlink/token": "^1.1.0"
  }
}

Any idea why this is happening ?

[klugjo]

Ho well, I found my answer the moment I posted this:

https://github.com/dethcrypto/TypeChain/tree/master/packages/hardhat

I needed to add

import '@typechain/hardhat';
import '@nomicfoundation/hardhat-chai-matchers';

to my hardhat.config.ts file then run hardhat clean and finally hardhat compile did what I expected it to