Wednesday, June 23, 2010

Resolving the “System.NullReferenceException: Object reference not set to an instance of an object” on a standard Enterprise Portal page

Recently we were running stress tests on various interfaces that came standard in Enterprise Portal. In particular, we were testing out the Purchase > Purchase requisitions interface. Everything worked until we clicked the New > New purchase requisition button. After that, things blew up and we got a really nasty error that began with the following:

An unexpected error has occurred.

Microsoft.Dynamics.Framework.BusinessConnector.Session.Exceptions.FatalSessionException: Dynamics Object Adapter Call failed. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Dynamics.Framework.Data.Ax.DataSetViewRow.GetFieldValue(DataSetViewFieldMetadata field)
at System.Web.UI.WebControls.BoundField.GetValue(Control controlContainer)
at Microsoft.Dynamics.Framework.Portal.UI.WebControls.AxBoundField.OnDataBindField(Object sender, EventArgs e)
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBindChildren()

Long story short, I eventually found the solution thanks to a post made by someone else who was having a similar issue, and double-thanks to the same person who took the time to come back and post the solution when he/she found it. This post can be seen here.

The problem was that I had recently added a new Dimension to the system. There was however one step that I did not know I had to do after adding the dimension and doing a synchronize. The missing final step was to re-compile the “Data Sets” node in the AOT. After doing this, and then restarting IIS on the Enterprise Portal Machine, the error went away, and problem was solved!


  1. Thanks for this Blog, But I still have the same problem with Business Portal
    Any Idea?

  2. Link Doesn't exist now . I am facing the similar error on AX Connector.