Rails 4: run application in production mode after assets precompile gives assets not found issue -

i using rails 4.1.8

in production.rb file have following:

  config.eager_load = false   config.cache_classes = false   config.consider_all_requests_local       = true   config.action_controller.perform_caching = true   config.serve_static_assets = true   config.assets.js_compressor = :uglifier   config.assets.compile = false   config.assets.digest = false   config.assets.debug = true 

now after running rails_env=production rake assets:precompile precompiles assets , store them public/assets folder file name application-ca4ad5e0582927b0a78c2b6feef3309b.js

after running application in production environment on local, throws error

actioncontroller::routingerror (no route matches [get] "/assets/application.js"): 

i tried changing values of config.serve_static_assets , others.. still facing same issue.

the precompiled files saved digest values in name, ex: application-ca4ad5e0582927b0a78c2b6feef3309b.js accessed application.js, causing main issue.

any suggestions here?? thanks..

refer discussion here - most of assets return 404 after push heroku exact issue facing.

adding 12 factor gem: github.com/heroku/rails_12factor fixes issue. (this gem required if you're running rails 4+ on heroku). tried adding gem 'rails_12factor' in same repo working , loads assets fine.

basically rails_12factor gem combination of 2 gems viz. rails_serve_static_assets , rails_stdout_logging. gem rails_serve_static_assets sets configuration true. in config/environments/production.rb

config.serve_static_assets = true 

so in general, if developing rails4 app , deploy on our own servers (say dedicated server , not heroku) setting flag config.serve_static_assets true sufficient , don't need add rails_12 factor or other gems. here code of rails_serve_static_assets gem used rails_12factor gem.

module railsservestaticassets   class railtie < rails::railtie     config.before_initialize       if rails.version >= "4.2.0"         ::rails.configuration.serve_static_files = true       else         ::rails.configuration.serve_static_assets = true       end       ::rails.configuration.action_dispatch.x_sendfile_header = nil     end   end end