Rails 3.2.8 Application.js und Application.css funktionieren nicht wie erwartet

Wenn ich versuche einzuschließen

<%= stylesheet_link_tag    "application" %>
<%= javascript_include_tag "application" %>

Der Inhalt der Dateien der application.css ist:

/*
* This is a manifest file that'll be compiled into application.css, which will include all the files
* listed below.
*
* Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
* or vendor/assets/stylesheets of plugins, if any, can be referenced here using a relative path.
*
* You're free to add application-wide styles to this file and they'll appear at the top of the
* compiled file, but it's generally better to create a new file per style scope.
*
*= require_self
*= require social_stream
*= require_tree .
*/

Und der Inhalt der Datei application.js ist

// 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 social_stream-base
//= require social_stream-documents
//= require social_stream-events
//= require social_stream-linkser
//= require social_stream-presence
//= require social_stream-oauth2_server
//= require_tree .

Meine Rails-App enthält nicht die CSS- und JS-Dateien, die im obigen Snippet benötigt werden. Aber wenn ich die Include-Tags auf die spezifische Datei aktualisiere, sind diese in Ordnung. d.h.

<%= stylesheet_link_tag    "social_stream" %>
<%= javascript_include_tag "jquery" %>

Was ich denke, dass es Ausgabe von Kettenrädern gibt, die nicht wie erwartet arbeiten, raten Sie bitte.

Ich werde dir wirklich dankbar sein.