New Post: Bundling & Minification

Hi,
I tried to locate the problem.
What I found is this :In BundlingAndMinification.cshtml in BundleStyles it creates the

            BundleTable.Bundles.Add(sb); on line 148;

next Statement is:

       var bundlerUrl = BundleTable.Bundles.ResolveBundleUrl(bundleVirtualPath);

When it goes to this statement, an exception occurs and the BundleTable.Bundles looks like this:

-       BundleTable.Bundles {System.Web.Optimization.BundleCollection}  System.Web.Optimization.BundleCollection
        Count   1   int
+       DirectoryFilter {System.Web.Optimization.IgnoreList}    System.Web.Optimization.IgnoreList
+       FileExtensionReplacementList    {System.Web.Optimization.FileExtensionReplacementList}  System.Web.Optimization.FileExtensionReplacementList
+       FileSetOrderList    Count = 7   System.Collections.Generic.IList<System.Web.Optimization.BundleFileSetOrdering> {System.Collections.Generic.List<System.Web.Optimization.BundleFileSetOrdering>}
+       IgnoreList  {System.Web.Optimization.IgnoreList}    System.Web.Optimization.IgnoreList
        UseCdn  false   bool
+       Non-Public members      
+       Results View    Expanding the Results View will enumerate the IEnumerable   
-       registeredSources   Count = 2   System.Collections.Generic.List<string>
        [0] "~/Frontend/1RB/Styles/style.css"   string
        [1] "~/Frontend/Composite/Web/Html/AcceptAlert/styles.css"  string
+       Raw View        
-       sb  {System.Web.Optimization.StyleBundle}   System.Web.Optimization.StyleBundle
-       base    {System.Web.Optimization.StyleBundle}   System.Web.Optimization.Bundle {System.Web.Optimization.StyleBundle}
+       Builder {System.Web.Optimization.DefaultBundleBuilder}  System.Web.Optimization.IBundleBuilder {System.Web.Optimization.DefaultBundleBuilder}
        CdnFallbackExpression   null    string
        CdnPath null    string
        ConcatenationToken  null    string
        EnableFileExtensionReplacements true    bool
+       Orderer {System.Web.Optimization.DefaultBundleOrderer}  System.Web.Optimization.IBundleOrderer {System.Web.Optimization.DefaultBundleOrderer}
        Path    "~/Bundles/Styles1347203396"    string
+       Transforms  Count = 1   System.Collections.Generic.IList<System.Web.Optimization.IBundleTransform> {System.Collections.Generic.List<System.Web.Optimization.IBundleTransform>}
+       Static members      
+       Non-Public members      
+       this    {ASP._Page_App_Data_Razor_Composite_Web_BundlingAndMinification_cshtml} ASP._Page_App_Data_Razor_Composite_Web_BundlingAndMinification_cshtml

The exception Message is:

A first chance exception of type 'System.IndexOutOfRangeException' occurred in WebGrease.dll

I have uploaded The Exception due to size and can be viewed here
And I do not know how to find the reason for it.