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Error 'Unexpected login error' When Logging into P6 Web, and 'Error trying to load object of type: GlobalPreferences' Occurs in the P6WebAccess.html Log (Doc ID 2641815.1)

Last updated on MARCH 22, 2022

Applies to:

Primavera P6 Enterprise Project Portfolio Management - Version 19.12 and later
Information in this document applies to any platform.


After upgrading P6 EPPM to version 19.12, one or both of the following errors occur:

- When logging into P6 Web:

Unexpected login error. Please contact your administrator.

- When logging in to P6 Professional:

Error Image Manager: 'null' is not a valid integer value.

In addition, the following error occurs in the <P6 EPPM home>\p6\WebAccessLogs\P6WebAccess.html log.

ERROR /action/login () - Failed loading object of type : GlobalPreferences
MDC: {context=/action/login ()}
java.lang.NumberFormatException: null


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

  1. Attempt to login to P6 Web.
  2. The first error occurs.
  3. Attempt to login to P6 Professional.
  4. The second error occurs.
  5. Review the P6WebAccess.html log and observe the associated error.




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