Can't push to the heroku

Question

I was pushing the current git repository into the heroku. That online application was developed using Scala and IntelliJ. And I don\'t know how to fix this error.

Answer 1

You could also select webpack build manually from the UI

Answer 2

You need to follow the instructions displayed here, on your case follow scala configuration:

https://devcenter.heroku.com/articles/getting-started-with-scala#introduction

After setting up the getting started pack, tweak around the default config and apply to your local repository. It should work, just like mine using NodeJS.

HTH! :)

Answer 3

There has to be a .git directory in the root of your project.

If you don't see that directory run git init and then re-associate your remote.

Like so:

heroku git:remote -a herokuAppName
git push heroku master

Answer 4

Specify the buildpack while creating the app.

heroku create appname --buildpack heroku/python

Answer 5

Read this doc which will explain to you what to do.
https://devcenter.heroku.com/articles/buildpacks

Setting a buildpack on an application

You can change the buildpack used by an application by setting the buildpack value.
When the application is next pushed, the new buildpack will be used.

$ heroku buildpacks:set heroku/php

Buildpack set. Next release on random-app-1234 will use heroku/php.
Run git push heroku master to create a new release using this buildpack.

This is whay its not working for you since you did not set it up.

... When the application is next pushed, the new buildpack will be used.

You may also specify a buildpack during app creation:

$ heroku create myapp --buildpack heroku/python

Answer 6

If you are a python user -
Create a requirements.txt file preferably using pip freeze > requirements.txt.
Add, commit and try pushing it again.

If this doesn't work try deleting .git (beware this might remove the associated git history) and follow the above steps again.

Worked for me.