PT/BR: Erro de build no Heroku usando yarn 2. ENG: Build error on Heroku using yarn 2

[adrianomonteiroweb]

-----> Build failed
! The 'yarnPath' could not be read from the 'yarnrc.yml' file
It looks like 'yarnrc.yml' is missing the 'yarnPath' value, which is needed
to identify the location of yarn for this build.
To regenerate 'yarnrc.yml' with the 'yarnPath' value set, make sure Yarn 2
is installed on your local machine and set the version in your project
directory with:
$ yarn set version berry
Read more at the Yarn docs: https://yarnpkg.com/getting-started/install#per-project-install

   https://devcenter.heroku.com/articles/nodejs-support

! Push rejected, failed to compile Node.js app.
! Push failed