Alias [/cxf] was never registered

Issue

I am working on migrating Jboss Fuse 6.1 to 6.3, getting below error

ERROR | lixDispatchQueue | cxf-rt-transports-http           | 165 - org.apache.cxf.cxf-rt-transports-http - 3.1.5.redhat-630187 | FrameworkEvent ERROR - org.apache.cxf.cxf-rt-transports-http
java.lang.IllegalArgumentException: Alias [/cxf] was never registered
    at org.ops4j.pax.web.service.internal.HttpServiceStarted.unregister(HttpServiceStarted.java:278)[246:org.ops4j.pax.web.pax-web-runtime:4.3.0]
    at org.ops4j.pax.web.service.internal.HttpServiceProxy.unregister(HttpServiceProxy.java:77)[246:org.ops4j.pax.web.pax-web-runtime:4.3.0]
    at org.apache.cxf.transport.http.osgi.ServletExporter.updated(ServletExporter.java:54)[165:org.apache.cxf.cxf-rt-transports-http:3.1.5.redhat-630187]
    at org.apache.cxf.transport.http.osgi.HttpServiceTrackerCust.removedService(HttpServiceTrackerCust.java:52)[165:org.apache.cxf.cxf-rt-transports-http:3.1.5.redhat-630187]
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:956)[karaf.jar:2.4.0.redhat-630187]
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerRemoved(ServiceTracker.java:1)[karaf.jar:2.4.0.redhat-630187]
    at org.osgi.util.tracker.AbstractTracked.untrack(AbstractTracked.java:341)[karaf.jar:2.4.0.redhat-630187]
    at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:902)[karaf.jar:2.4.0.redhat-630187]
    at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:943)[org.apache.felix.framework-4.4.1.jar:]
    at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:794)[org.apache.felix.framework-4.4.1.jar:]
    at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:544)[org.apache.felix.framework-4.4.1.jar:]
    at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4445)[org.apache.felix.framework-4.4.1.jar:]
    at org.apache.felix.framework.Felix.access$000(Felix.java:77)[org.apache.felix.framework-4.4.1.jar:]
    at org.apache.felix.framework.Felix$1.serviceChanged(Felix.java:404)[org.apache.felix.framework-4.4.1.jar:]
    at org.apache.felix.framework.ServiceRegistry.unregisterService(ServiceRegistry.java:153)[org.apache.felix.framework-4.4.1.jar:]
    at org.apache.felix.framework.ServiceRegistrationImpl.unregister(ServiceRegistrationImpl.java:128)[org.apache.felix.framework-4.4.1.jar:]
    at org.ops4j.pax.web.service.internal.Activator.updateController(Activator.java:336)[246:org.ops4j.pax.web.pax-web-runtime:4.3.0]
    at org.ops4j.pax.web.service.internal.Activator$2.run(Activator.java:286)[246:org.ops4j.pax.web.pax-web-runtime:4.3.0]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)[:1.7.0]
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)[:1.7.0]
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)[:1.7.0]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)[:1.7.0]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)[:1.7.0]
    at java.lang.Thread.run(Thread.java:722)[:1.7.0]