My Oracle Support Banner

Error "Unable to load data / Unknown error" When Accessing the Notebook Tab in P6 Web EPS View (Doc ID 2923610.1)

Last updated on FEBRUARY 02, 2023

Applies to:

Primavera P6 Enterprise Project Portfolio Management - Version and later
Linux x86-64


After opening a project with a Notebook topic assigned, when navigating to the Projects > EPS > Notebook tab in P6 Web, the following error occurs.

This issue does not occur when connecting via P6 Professional; the notebook topics loads successfully without any error.

Unable to load data
Unknown error, please contact your System Administrator

The following error can also be found in the <P6 EPPM home>/p6/WebAccessLogs/P6WebAccess.html log file:

<TIMESTAMP> [ACTIVE] ExecuteThread: '5' for queue: 'weblogic.kernel.Default (self-tuning)' ERROR /rest/projects/project/######/notebook (User Id: ### DB Id: #) Could not initialize class sun.awt.X11GraphicsEnvironment
java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment

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

  1. In P6 Web go to Projects > EPS.
  2. Highlight a project that has a Notebook Topic assigned.
  3. Attempt to load the Notebook Topic.
  4. Observe the reported error.




To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.