Deploying Rails app to Heroku after previously taking Gemfile.lock out of repository
问题 I'm working through the Rails 3.2 edition of Ruby on Rails Tutorial, and am right near the end of Chapter 5. Although it accepted my code a few days ago, Heroku no longer wants to take it when I push. It complains that it needs a Gemfile.lock, which I can understand -- but I am supplying one already. A few days ago I did remove Gemfile.lock from the repository, since I started this project on Windows and ran into Bundler hell due to that. At that time, I added Gemfile.lock's name to