Yarn Setup a Project Error

[EngAbdalrhman]

tried to run yarn add --dev hardhat
and it gives me an error Usage Error: No project found in /C:/Users/UserName/fundme_solidity_js_fcc
so I used yarn init first to initialize a project and it started creating some files after that I used yarn hardhat to create a hardhat project but no node_module folder was created, it also hadn't let me choose if I want it basic or advanced.
after that i go yarn add --dev @chainlink/contracts and it gives me warning

@chainlink/contracts@npm:0.6.1 doesn't provide ethers (pcceb0), requested by @eth-optimism/contracts
➤ YN0000: │ Some peer dependencies are incorrectly met; run yarn explain peer-requirements <hash> for details, where <hash> is the six-letter p-prefixed code
➤ YN0000: └ Completed in 7s 179ms

in the end, I run yarn hardhat compile
and it gives me that error

Error: Your application tried to access @nomicfoundation/hardhat-toolbox, but it isn't declared in your dependencies; this makes the required call ambiguous and unsound.

Required package: @nomicfoundation/hardhat-toolbox (via "@nomicfoundation\hardhat-toolbox")

I tried also yarn install to add yarn files at the end but nothing happened
I find a cache folder inside the yarn folder and it contains the downloaded packages as .zip extension
so can anyone help?

[alfaqi]

1- install new hardhat project

yarn add hardhat

2- then, initialize the project

yarn hardhat

3- after that, you need to install the dependencies

[EngAbdalrhman]

the first command gives that error

Usage Error: No project found in /C:/Users/UserName/solidity/fund-me

$ yarn add [--json] [-E,--exact] [-T,--tilde] [-C,--caret] [-D,--dev] [-P,--peer] [-O,--optional] [--prefer-dev] [-i,--interactive] [--cached] [--mode #0] ...