WFLYJSF0016: Failed to inject JSF from slot ... in JBoss EAP 7.2

Issue

• We are trying to configure JSF 2.1 in EAP 7.2, Following the guideline provided for Multi-JSF Implementation of JavaServer Faces.

But still getting error as below:

ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.deployment.unit."ML-PricingEAR.ear".DEPENDENCIES: org.jboss.msc.service.StartException in service jboss.deployment.unit."app.ear".DEPENDENCIES: WFLYSRV0153: Failed to process phase DEPENDENCIES of deployment "app.ear"
        at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:151)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701)
        at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559)
        at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1364)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: WFLYJSF0016: Failed to inject JSF from slot Mojarra-2.1
        at org.jboss.as.jsf.deployment.JSFDependencyProcessor.addJSFInjection(JSFDependencyProcessor.java:154)
        at org.jboss.as.jsf.deployment.JSFDependencyProcessor.deploy(JSFDependencyProcessor.java:95)
        at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:144)
        ... 8 more