title: Bundling SCSS files into CSS
body: <p>I am trying to Integrate scss file in Asp.Net with the Bundle method:</p>
  
  <pre><code>public static void RegisterBundles(BundleCollection bundles) {
  bundles.Add(new ScriptBundle("~/bundles/jquery").Include(
  "~/Scripts/jquery-{version}.js"));
  
  bundles.Add(new ScriptBundle("~/bundles/modernizr").Include("~/Scripts/modernizr-*"));
  bundles.Add(new StyleBundle("~/Content/css").Include(
  "~/Content/css/bootstrap.css","~/Content/css/Site.css"));
  
  var sassBundle = new Bundle("~/content/style-bundle").Include(
  "~/content/css/style.scss" );
  sassBundle.Transforms.Add(new BundleTransformer.Core.Transformers.CssTransformer());
  sassBundle.Transforms.Add(new CssMinify());
  sassBundle.Orderer = new BundleTransformer.Core.Orderers.NullOrderer();
  bundles.Add(sassBundle);
   }
  }
  </code></pre>
  
  <p>I get the following Error:</p>
  
  <pre><code>An exception of type 'BundleTransformer.Core.Translators.AssetTranslationException' occurred in BundleTransformer.SassAndScss.dll but was not handled in user code
  </code></pre>
  
  <p>Additional information: During translation of SCSS-code, readed from the file '/content/css/style.scss', to CSS-code syntax error has occurred. </p>
  
  <p>See more details:</p>
  
  <pre><code>Message: Undefined mixin 'box-shadow'.
  
  File: /content/css/covve/_colours.scss
  
  Line number: 56
  </code></pre>
  
  <p>I have already download all the Sass lib.Can anyone help me i'm a newbie on sass files.
  Thank you in advance! </p>