Не доплоится реакт-приложение на Heroku!

Unmet dependencies don't fail yarn install but may cause runtime issues

   https://github.com/npm/npm/issues/7494

=====> Downloading Buildpack: https://github.com/mars/create-react-app-inner-buildpack.git#v9.0.0

=====> Detected Framework: React.js (create-react-app)

   Writing `static.json` to support create-react-app

   Enabling runtime environment variables

=====> Downloading Buildpack: https://github.com/heroku/heroku-buildpack-static.git#21c1f5175186b70cf247384fd0bf922504b419be

=====> Detected Framework: Static HTML Stack heroku-22 is not supported!

! Push rejected, failed to compile React.js (create-react-app) multi app.

! Push failed