I was trying to install the dependencies of an existing project using:
All of a sudden I saw this error in terminal:
... [2/4] Fetching packages... error Incorrect integrity when fetching from the cache info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.
The solution to this problem is to do a cache cleaning. Just run following command from the same position:
yarn cache clean
After running above command, we can proceed with
yarn install or
yarn add commands. It should work fine.