WebLogic Admin Server Fails to Start With the Error "java.lang.NoClassDefFoundError: oracle/simplefan/FanManager" (Doc ID 2633573.1)

Last updated on FEBRUARY 15, 2023

Applies to:

Oracle WebLogic Server - Version 12.2.1.3.0 and later
Information in this document applies to any platform.

When trying to start WebLogic Admin Server it fails to start with the below 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!

In this Document

Symptoms

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