how to solve this err in hardhat vs code - node.js

Question

You are using a version of Node.js that is not supported by Hardhat,
and it may work incorrectly, or not work at all. Please, make sure you
are using a supported version of Node.js. To learn more about which
versions of Node.js are supported go to
https://hardhat.org/nodejs-versions
An unexpected error occurred:
Error: Cannot find module '#nomiclabs/hardhat-waffle'
Require stack:
- D:\3.1\dppa\hardhat.config.js
- D:\3.1\dppa\node_modules\hardhat\internal\core\config\config-loading.js
- D:\3.1\dppa\node_modules\hardhat\internal\cli\cli.js
at Function.Module._resolveFilename (node:internal/modules/cjs/loader:939:15)
at Function.Module._load (node:internal/modules/cjs/loader:780:27)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object.<anonymous> (D:\3.1\dppa\hardhat.config.js:1:1)
at Module._compile (node:internal/modules/cjs/loader:1105:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:827:12)
at Module.require (node:internal/modules/cjs/loader:1005:19) {
code: 'MODULE_NOT_FOUND',
requireStack: [
'D:\\3.1\\dppa\\hardhat.config.js',
'D:\\3.1\\dppa\\node_modules\\hardhat\\internal\\core\\config\\config-loading.js',
'D:\\3.1\\dppa\\node_modules\\hardhat\\internal\\cli\\cli.js'
]
}
PS D:\3.1\dppa>

Answer 1

It looks like you are trying to run the sample project and are missing plugins.
As stated here, you need to install some plugins for the sample project with the following command.
npm install --save-dev #nomiclabs/hardhat-waffle ethereum-waffle chai #nomiclabs/hardhat-ethers ethers
Besides that, as stated in the provided link, you should use the latest LTS of Node.js, which is Node.js 16 and can be downloaded here