Invalid Page State IndexOutOfRangeException

[msvidron]

I've just recently started getting the following error and I do not understand how or why! Can anyone please help? thanks!!!

System.IndexOutOfRangeException: Index was outside the bounds of the array. at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.DeserializeValueInternal() at System.Web.UI.LosFormatter.Deserialize(String input) at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() --- End of inner exception stack trace --- at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() at System.Web.UI.Page.LoadPageViewState() at System.Web.UI.Page.ProcessRequestMain()

 

[JohnH]

You get IndexOutOfRangeException which means you try to access some array or collection by index greater than number of elements. What code does this happen?