Server cannot modify cookies after HTTP headers have been sent.

Server Error in '/' Application.

Server cannot modify cookies after HTTP headers have been sent.

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.Web.HttpException: Server cannot modify cookies after HTTP headers have been sent.

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:


[HttpException (0x80004005): Server cannot modify cookies after HTTP headers have been sent.]
   System.Web.HttpResponse.BeforeCookieCollectionChange() +85
   System.Web.HttpCookieCollection.Add(HttpCookie cookie) +30
   System.Web.Security.AnonymousIdentificationModule.OnEnter(Object source, EventArgs eventArgs) +2068
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +223
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +220
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +94

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4210.0