Код:
$ touch 1
$ yarn
yarn install v0.24.5
[1/4] Resolving packages...
error Couldn't find a package.json file in "/var/www/blablabla.local/1"
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
$ rm 1
$ yarn
yarn install v0.24.5
[1/4] Resolving packages...
success Already up-to-date.
Done in 0.58s.