Yarn error

[Prog-block]

root@LAPTOP-RJFAIHQV:~/folder/hardhat-fund-me-fcc# yarn add --dev hardhat
yarn add v1.22.19
info No lockfile found.
[1/4] Resolving packages...
error An unexpected error occurred: "https://registry.yarnpkg.com/hardhat: getaddrinfo EAI_AGAIN registry.yarnpkg.com".
info If you think this is a bug, please open a bug report with the information provided in "/root/folder/hardhat-fund-me-fcc/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

The above error is showing when typing yarn add --dev hardhat in terminal.
I am in lesson 7, 10hrs, 3min

[alymurtazamemon]

@Prog-block Never seen this error, try removing yarn.lock file if you have any and try again. If you still face this issue then open an issue on provided URL in the error.

[Si-sivan]

I have the same question now. How did you solve this?

[Prog-block]

Can't remember. I have switched to foundry now, I would suggest you should do the same.

[Si-sivan]

ok, thank you

[Si-sivan]

I solve my problem !!!

npm config rm proxy
npm config rm https-proxy
it worked for me