ERROR: "An Application Has Been Intercepted. Please Note the Event Code for Reference" Event Code: DNA-0260-6. "Type EListError; Description: Duplicates Not allowed." When Launching P6 Professional or dbconfig.exe After Upgrading to 15.2.x

(Doc ID 2098963.1)

Last updated on JUNE 06, 2016

Applies to:

Primavera P6 Professional Project Management - Version and later
Information in this document applies to any platform.


When attempting to upgrade/install P6 Professional when a previous version existed (for example, v8.4 or v8.3.2), the installation/upgrade process generates the following error:

Exception EList errors in module PM.EXE Duplicates not allowed".


The following error is generated when the installer is attempting to launch PM.exe or dbconfig.exe:

Event Code: DNA-0260-6
Message: Duplicates not allowed"

Selecting Ignore to the popup lets you pick a database and login normally.


  1. Install P6 Professional r8.4 or r8.3.2 and ensure you have a valid database connection.
  2. Attempt to upgrade P6 Professional to r15.x or r16.1
  3. Note the error which occurs during installation and after launching PM.exe or dbconfig.exe.


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