When you try to upgrade from Duet Enterprise 1.0 in Microsoft SharePoint 2010 to Duet Enterprise 1.0 or Duet Enterprise 2.0 in Microsoft SharePoint 2013, the operation fails.
This issue occurs because SharePoint 2013 does not support Duet Enterprise 1.0.
To resolve this issue, apply the following update:
2760396 Description of the Duet Enterprise for SharePoint and SAP hotfix package (Duetserver-x-none.msp): November 15, 2012
This hotfix package includes updates that enable Duet Enterprise 1.0 to work correctly in Microsoft SharePoint Server 2013.
Note Apply this hotfix on computers that are running SharePoint 2013 and that have Duet Enterprise 1.0 installed.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.