Planning workbook in Analysis

Hello All,

  I'm trying to create a Integrated Planning workbook using Analysis for Office. I have gone through this

http://scn.sap.com/docs/DOC-16319 document and I get this error when I try to add  Planning function to the workbook

An exception occurred in one of the data sources.

SAP BI Add-in has disconnected all data sources.

If you want to restart, press the Restart button below. (ID-111006).

I'm not sure what I'm missing here.

Appreciate your help.