rake asset:precompile for rails 2.3.18

hi everyone,

i have deployed a rails application on heroku
ruby version 1.9.3-p547
rails version 2.3.18

while i am using webrick server its working properly,but using unicorn server its not working ,that means it didn’t support javascript, css and all,it shows error like this

ActionController::RoutingError (No route matches “/images/search.jpg” with {:method=>:get}):

so i have tried this command $ bundle exec rake assets:precompile RAILS_ENV=production RAILS_GROUPS=assets
but it shows error like this

rake aborted!
Don’t know how to build task ‘assets:precompile’

in rails 2.3.18 not even have assets.please help me to solve this.

thanks in advance

Yes, there's no asset pipeline in Rails 2.3.x, so you need to fix your
actual problem.

What happens when you try this on your dev system?