I am in the process of converting an application from the .net 1.1 framework to .net 2.0 that uses the Microsoft UIP Application block. This app uses a graph navigator which hasn't changed during conversion. When I start the app and try to test each of the views, I randomly receive the error:
Object reference not set to an instance of an object.
[NullReferenceException: Object reference not set to an instance of an object.]
Microsoft.ApplicationBlocks.UIProcess.OpenNavigator..ctor(String name, Guid taskId) +45
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061
Does anyone have an idea as to what would cause this?