CarrierWave workaround: the files have to be saved manually

app/controllers/admin/designs_controller.rb

@@ -6,11 +6,7 @@ class Admin::DesignsController < ApplicationController
   end
 
   def new
-    @designs = Design.new
-    @designs.stylesheets.build
-    @designs.javascripts.build
-    @designs.images.build
-
+    @design = Design.new
   end
 
   def update
@@ -32,7 +28,6 @@ class Admin::DesignsController < ApplicationController
   end
 
   def create
-    debugger
     @design = Design.new(params[:design])
     if @design.save
         flash[:notice] = "Successfully created design and tasks."