Deploy a ruby app to Heroku

Question

I’m trying to deploy a ruby app to Heroku. The whole log is at this link.

I thought it was the error below (which appears in part of the log), but even after installing Yarn (I included in Gem and gave a Bundle install), I still have problems.

Yarn executable was not detected in the system.
Download Yarn at https://yarnpkg.com/en/docs/install     

Answer 1

The solution to your problem is in https://blog.heroku.com/yarn-deterministic-dependency-resolution