Rails - Jul 2013 - ActionView::Template::Error Not a directory vendor/assets/javascripts/ production

Hello,

In production environment, I have this error ActionView::Template::Error 
Not a directory vendor/assets/javascripts/holder.js when in my template I 
have this line
 <%= image_tag "holder.js/150x200" %>

My production.rb is :

Libapp::Application.configure do
  # Settings specified here will take precedence over those in 
config/application.rb

  # Code is not reloaded between requests
  config.cache_classes = true

  # Full error reports are disabled and caching is turned on
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

  # Disable Rails''s static asset server (Apache or nginx will already
do
this)
  config.serve_static_assets = false

  # Compress JavaScripts and CSS
  config.assets.compress = true

  # Don''t fallback to assets pipeline if a precompiled asset is missed
  config.assets.compile = true

  # Generate digests for assets URLs
  config.assets.digest = true

  # Defaults to nil and saved in location specified by config.assets.prefix
  # config.assets.manifest = YOUR_PATH

  # Specifies the header that your server uses for sending files
  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for
apache
  # config.action_dispatch.x_sendfile_header =
''X-Accel-Redirect'' # for
nginx

  # Force all access to the app over SSL, use Strict-Transport-Security, 
and use secure cookies.
  # config.force_ssl = true

  # See everything in the log (default is :info)
  # config.log_level = :debug

  # Prepend all log lines with the following tags
  # config.log_tags = [ :subdomain, :uuid ]

  # Use a different logger for distributed setups
  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)

  # Use a different cache store in production
  # config.cache_store = :mem_cache_store

  # Enable serving of images, stylesheets, and JavaScripts from an asset 
server
  # config.action_controller.asset_host = "http://assets.example.com"

  # Precompile additional assets (application.js, application.css, and all 
non-JS/CSS are already added)
  # config.assets.precompile += %w( search.js )

  # Disable delivery errors, bad email addresses will be ignored
  # config.action_mailer.raise_delivery_errors = false

  # Enable threaded mode
  # config.threadsafe!

  # Enable locale fallbacks for I18n (makes lookups for any locale fall 
back to
  # the I18n.default_locale when a translation can not be found)
  config.i18n.fallbacks = true

  # Send deprecation notices to registered listeners
  config.active_support.deprecation = :notify

  # Log the query plan for queries taking more than this (works
  # with SQLite, MySQL, and PostgreSQL)
  # config.active_record.auto_explain_threshold_in_seconds = 0.5
end


And the application.js is 

// This is a manifest file that''ll be compiled into application.js,
which
will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, 
lib/assets/javascripts, vendor/assets/javascripts,
// or vendor/assets/javascripts of plugins, if any, can be referenced here 
using a relative path.
//
// It''s not advisable to add code directly here, but if you do,
it''ll
appear at the bottom of the
// the compiled file.
//
// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT''S TO BE
PROCESSED,
ANY BLANK LINE SHOULD
// GO AFTER THE REQUIRES BELOW.
//
//= require jquery
//= require jquery_ujs
//= require holder
//= require bootstrap
//= require_tree .

In development, it''s ok.

Thank you.

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