WebLogic 12C EJB deployment issue

Recently I faced issue while deploying existing custom ear, while deploying on upgraded WebLogic Version 12C. The existing ear is previously compatible with older WebLogic version 10.3.4
While deploying same ear on newer version of WebLogic got following error on server and console -

weblogic.management.DeploymentException: weblogic.application.naming.ReferenceResolutionException: [J2EE:160199]Error resolving ejb-ref "com.xxx.xxx.xxx.xxx.xxx.xxx.XXXX/xxxRemote" from module

"XXX-X.X.X.war" of application "XXX-X.X.X". The ejb-ref does not have an ejb-link and the JNDI name of the target Bean has not been specified.

Solution:
To deploy it, I have removed my EJB module jar from

XXX.ear
             |__ xxx.war
                               |__ WEB-INF
                                                    |__ lib
                                                             |__ ejb jar [which causing issue]

Note, in my case the jar I removed from WAR file, is already present under EAR, and having duplicate occurrence inside the WAR/lib.

Hope this will help.