$ ls Gemfile Gemfile.lock $ heroku create --buildpack heroku/ruby $ git push heroku main ... -----> Heroku receiving push -----> Fetching custom buildpack -----> Ruby app detected -----> Installing dependencies using Bundler version 1.1.rc Running: bundle install --without development:test --path vendor/bundle --deployment Fetching gem metadata from http://rubygems.org/.. Installing rack (1.3.5) U