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Error 'An item with the same key has already been added' When Exporting to XML in P6 Professional Connected to a SQLite Database (Doc ID 2229398.1)

Last updated on JUNE 07, 2021

Applies to:

Primavera P6 Professional Project Management - Version 16.1.0.0 and later
Primavera P6 Enterprise Project Portfolio Management Cloud Service - Version 18.8 to 18.8 [Release 18.8]
Information in this document applies to any platform.

Symptoms

When attempting to export a project to an XML file, the following error occurs.

Prism.Modularity.ModuleInitializeException: An exception occurred while initializing module 'CommandLineModule'.
  - The exception message was: An item with the same key has already been added.
  - The Assembly that the module was trying to be loaded from was:Primavera.Mercury.CommandLineModule, Version=16.1.0.18077, Culture=neutral, PublicKeyToken=null
  Check the InnerException property of the exception for more information. If the exception occurred while creating an object in a DI container, you can exception.GetRootException() to help locate the root cause of the problem.
  ---> System.ArgumentException: An item with the same key has already been added.

 

The issue can be reproduced at will with the following steps:
1. Login to P6 Professional.
2. Click File > Export, select XML format.
3. Complete the Export Wizard.
4. Export fails and the reported error is listed in the log file.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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