503 yarn error


- 503뜨면
![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F79594d58-0ecd-442f-9f23-1fb6f618ada9%2FUntitled.png?table=block&id=d9a12670-61d0-4a4b-95b7-5c2392a78d8a&cache=v2)
yarn lock 없에고 다시 다운 - yarn lock 된 레포 없어진거
> [An unexpected error occurred: "https://registry.yarnpkg.com/ : Not found" · Issue #5865 · yarnpkg/yarn](https://github.com/yarnpkg/yarn/issues/5865)
