Heroku does not precompile assets when deploying

Question

It very clearly says in its documentation that it would do this if I don\'t precompile them locally.

And truthfully, I have no interest in precompiling these locally.

Answer 1

Some things to check

1. You're on Cedar, right? Heroku only supports this behavior on Cedar.
2. You're on Rails 3, right? Heroku doesn't support precompiling assets on Rails 4.
3. You have asset pipeline turned on, right? in config/application.rb you need the line config.assets.enabled = true
4. You have to not have a public/assets folder. On deployment Heroku decides whether or not to precompile based on whether this folder is present (even if it's empty).
5. If the pipeline is on and you don't have an assets folder, then pre-compilation must be failing.