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     git push heroku master Counting objects  3  done  Delta compression using up to 4 threads  Compressing objects  100   3 3   done  Writing objects  100   3 3   531 bytes   0 bytes s  done  Total 3  delta 0   reused 0  delta 0  remote  Compressing source files    done  remote  Building source  remote   remote         No default language could be detected for this app  remote              HINT  This occurs when Heroku cannot detect the         buildpack to use for this application automatically  remote              See https   devcenter heroku com articles buildpacks remote   remote         Push failed remote  Verifying deploy     remote   remote      Push rejected to salty-coast-14102  remote   To https   git heroku com salty-coast-14102 git     remote rejected  master - gt  master  pre-receive hook declined  error  failed to push some refs to  https   git heroku com salty-coast-14102 git

User · Answer

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

User · Answer

Specify the buildpack while creating the app   heroku create appname --buildpack heroku python

User · Answer

If you are using django app to deploy on heroku  make sure to put request library in the requirements txt file

User · Answer

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

User · Answer

If your app is a Scala app  it must have a build sbt in the root directory  and that file must be checked into Git  You can confirm this by running     git ls-files build sbt   If that file exists and is checked into Git  try running this command     heroku buildpacks set heroku scala

User · Answer

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

User · Answer

Make sure you have package json inside root of your project  Happy coding

User · Answer

You could also select webpack build manually from the UI

User · Answer

If you are a python user - Create a requirements txt file preferably using pip freeze  gt  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

[git] Can't push to the heroku

Setting a buildpack on an application

Examples related to git

Examples related to scala

Examples related to heroku

Examples related to intellij-idea