System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at System.Collections.Generic.List`1.Add(T item)
   at RazorEngine.Compilation.CrossAppDomainCleanUp.CleanupHelper.RegisterCleanupPath(String path)
   at RazorEngine.Compilation.ExecutionContextLessThread.ActionConv.Call(Boolean data)
   at RazorEngine.Compilation.ExecutionContextLessThread.CallHelperSafeHelper`2.AsAction()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at RazorEngine.Compilation.ExecutionContextLessThread.DefaultCallAction(Action a)
   at RazorEngine.Templating.InvalidatingCachingProvider.CacheTemplate(ICompiledTemplate template, ITemplateKey templateKey)
   at RazorEngine.Templating.RazorEngineService.CompileAndCacheInternal(ITemplateKey key, Type modelType)
   at RazorEngine.Templating.RazorEngineService.GetCompiledTemplate(ITemplateKey key, Type modelType, Boolean compileOnCacheMiss)
   at RazorEngine.Templating.RazorEngineService.GetTemplate(ITemplateKey key, Type modelType, Object model, DynamicViewBag viewbag)
   at RazorEngine.Templating.TemplateService.GetTemplate(String razorTemplate, Object model, String name)
   at RazorEngine.Templating.TemplateService.Parse(String razorTemplate, Object model, DynamicViewBag viewBag, String cacheName)