How to have yarn not issue a warning for the license field?

For yarn and npm, the default behavior is that they look up into the parent directories.

I had an outdated and forgotten package.json in my home folder without a license field:

~/package.json

When running yarn install within my project:

~/my-project/package.json

yarn then also found the one in my home directory and reported the error for that one. I mistook that for my project’s package.json.

The warning makes that clear by preceding the path with .. for the parent folder.

warning ../package.json: No license field

After removing that outdated package.json I get the expected output:

yarn install v0.27.5
[1/4] Resolving packages...
success Already up-to-date.
Done in 0.88s.