Incorrect integrity when fetching from the cache

Question

When running yarn add --dev jest, I got error Incorrect integrity when fetching from the cache.

Full output:

Answer 1

Yarn cache clean did not help. We must downgrading yarn version on the server.

It turns out that the problem is associated with the use of private packages.

GitHub Yarnpkg - "Incorrect integrity when fetching from the cache" #7584