PPS 2010/2013 - The data source no longer exists or you do not have permissions to view it. Additional details have been logged for your administrator

When connecting to data source in PPS, you don’t find cube in the drop down. Though the account had full admin rights on cube.

The event viewer entry would be

System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.AnalysisServices.AdomdClient, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.

Resolution:

1. Install ADOMD.NET for Microsoft® SQL Server® 2008 R2 Feature pack
2. You can find the exe @
   http://www.microsoft.com/en-us/download/details.aspx?id=16978
3. Check under instructions
   
   Cheers!
   Vamsi