Heroku wrongly detecting my Node app as a Ruby app

Question

I have a Node project that is using Bundler and Guard to handle my pre-compilations steps. This means that I have a Gemfile in the root of my project along with the package.

Answer 1

It seems there's a new way to do this as BUILDPACK_URL is now deprecated, explained here, but essentially the command is:

$ heroku buildpacks:set heroku/nodejs

You may also specify a buildpack during app creation:

$ heroku create myapp --buildpack heroku/nodejs