While using elmah, I am getting an error like this in ExamineInspector "Index" File. Any idea on this .

System.NullReferenceException: Could not find the placeholder control to render the JavaScript:JavaScriptPlaceHolder

System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Could not find the placeholder control to render the JavaScript:JavaScriptPlaceHolder

   at ClientDependency.Core.FileRegistration.Providers.PlaceHolderProvider.RegisterDependencies(HttpContextBase http, String js, String css) in x:\Projects\ClientDependency\ClientDependency\ClientDependency.Core\FileRegistration\Providers\PlaceHolderProvider.cs:line 74

   at ClientDependency.Core.FileRegistration.Providers.WebFormsFileRegistrationProvider.RegisterDependencies(Control dependantControl, List`1 allDependencies, HashSet`1 paths, HttpContextBase http) in x:\Projects\ClientDependency\ClientDependency\ClientDependency.Core\FileRegistration\Providers\WebFormsFileRegistrationProvider.cs:line 39

   at ClientDependency.Core.Controls.ClientDependencyLoader.<RenderDependencies>b__2(ProviderDependencyList x) in x:\Projects\ClientDependency\ClientDependency\ClientDependency.Core\Controls\ClientDependencyLoader.cs:line 145

   at System.Collections.Generic.List`1.ForEach(Action`1 action)

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Control.PreRenderRecursiveInternal()

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.HandleError(Exception e)

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest()

   at System.Web.UI.Page.ProcessRequest(HttpContext context)

   at ASP.umbraco_plugins_examineinspector_default_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\db1de452\b354cfcd\App_Web_default.aspx.b94f9e41.gcptard1.0.cs:line 0

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)