"jquery.ui.combined' is not a valid script name.  The name must end in '.js'.

I started a basic web app in Visual Studio 2013 and when I try to run it, i get the error below.
Server Error in '/' Application. 'jquery.ui.combined' is not a valid script name. The name must end in '.js'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: 'jquery.ui.combined' is not a valid script name. The name must end in '.js'. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [InvalidOperationException: 'jquery.ui.combined' is not a valid script name. The name must end in '.js'.] System.Web.UI.ScriptReference.GetDebugName(String releaseName ...