Lesson 9: Error adding ethers version 5.7.2

[parishill25]

Hi,
I want to add the ethers version 5.7.2 to my project. with yarn add --dev @ethers@5.7.2 and i got this error
warning package.json: No license field
warning No license field
[1/4] Resolving packages...
error An unexpected error occurred: "https://registry.yarnpkg.com/@ethers: Request "https://registry.yarnpkg.com/@ethers\" returned a 405".
info If you think this is a bug, please open a bug report with the information provided in "/root/lottery-hardhat/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

[alymurtazamemon]

@parishill25 run this and see yarn add --dev @ethers@5.7.2 --force

[parishill25]

Unfortunately,I got the same error

[alymurtazamemon]

@parishill25 Try deleting, node_modules folder, and yarn.lock file and reinstall dependencies yarn install