DEPRECATION WARNING: The configuration option `config.serve_static_assets` has been renamed to `config.serve_static_files` to clarify its role (it merely enables serving everything in the `public` folder and is unrelated to the asset pipeline). The `serve_static_assets` alias will be removed in Rails 5.0. Please migrate your configuration files accordingly. (called from block in tsort_each at /tmp/build_0541a05ecf98c1e48981ce6fd533d6d4/vendor/ruby-2.2.3/lib/ruby/2.2.0/tsort.rb:226) #37