Why can't I deploy my hosted React build via Heroku?

Question

GitHub

I have a React app that builds and runs successfully on localhost. I tried deploying it to a hosted server using Heroku by linking a Heroku-built app with a Github repository. I selected the repository and the master branch:

Next, I made a build, it was executed:

When I opened the address of the deployed application, an error message appeared:

Deployment logs:

What is the reason for this problem and how can I solve it?

Answer 1

There is something wrong with your configuration. Heroku does npm start and there is no such script in your package.json.

Answer 2

Good afternoon! Have you figured out how to download a React app from the Github repository on Heroku? I faced the same problem