Error: 'System.OverflowException: Value Was Either Too Large or Too Small for an Int16,' When Importing a Microsoft (MS) Project XML file.

(Doc ID 2412949.1)

Last updated on JUNE 25, 2018

Applies to:

Primavera P6 Enterprise Project Portfolio Management Cloud Service - Version 18.1 to 18.5 [Release 18.1 to 18.5]
Information in this document applies to any platform.


When importing an MS Project XML file, the Import result shows the process completed with errors. The file does not appear.


4/26/2018 8:10:24 PM Information Exception Prism.Modularity.ModuleInitializeException: An exception occurred while initializing module 'CommandLineModule'. 
    - The exception message was: One or more errors occurred.
    - The Assembly that the module was trying to be loaded from was:Primavera.Mercury.CommandLineModule, Version=, 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.AggregateException: One or more errors occurred. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.AggregateException: One or more errors occurred. ---> 

System.OverflowException: Value was either too large or too small for an Int16.
   at System.Convert.ToInt16(Int32 value)


The issue can be reproduced at will with the following steps:

  1. Launch P6 Professional.
  2. Select File, Import.
  3. Select MS Project XML file type.
  4. Select file location.
  5. Click ok.
  6. Observe the errors in the log file.


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