LinkstateTopologyBuilder NPE

java.lang.NullPointerException: null at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.createPrefix(LinkstateTopologyBuilder.java:582) ~[220:org.opendaylight.bgpcep.bgp-topology-provider:0.10.0] at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.createObject(LinkstateTopologyBuilder.java:648) ~[220:org.opendaylight.bgpcep.bgp-topology-provider:0.10.0] at org.opendaylight.bgpcep.bgp.topology.provider.LinkstateTopologyBuilder.createObject(LinkstateTopologyBuilder.java:93) ~[220:org.opendaylight.bgpcep.bgp-topology-provider:0.10.0] at org.opendaylight.bgpcep.bgp.topology.provider.AbstractTopologyBuilder.routeChanged(AbstractTopologyBuilder.java:232) ~[220:org.opendaylight.bgpcep.bgp-topology-provider:0.10.0] at org.opendaylight.bgpcep.bgp.topology.provider.AbstractTopologyBuilder.onDataTreeChanged(AbstractTopologyBuilder.java:182) ~[220:org.opendaylight.bgpcep.bgp-topology-provider:0.10.0] at org.opendaylight.controller.md.sal.binding.impl.BindingDOMDataTreeChangeListenerAdapter.onDataTreeChanged(BindingDOMDataTreeChangeListenerAdapter.java:42) ~[242:org.opendaylight.controller.sal-binding-broker-impl:1.8.0] at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.dataChanged(DataTreeChangeListenerActor.java:67) [255:org.opendaylight.controller.sal-distributed-datastore:1.8.0] at org.opendaylight.controller.cluster.datastore.DataTreeChangeListenerActor.handleReceive(DataTreeChangeListenerActor.java:41) [255:org.opendaylight.controller.sal-distributed-datastore:1.8.0] at org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor.onReceive(AbstractUntypedActor.java:38) [247:org.opendaylight.controller.sal-clustering-commons:1.8.0] at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:167) [78:com.typesafe.akka.actor:2.5.11] at akka.actor.Actor.aroundReceive(Actor.scala:517) [78:com.typesafe.akka.actor:2.5.11] at akka.actor.Actor.aroundReceive$(Actor.scala:515) [78:com.typesafe.akka.actor:2.5.11] at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:97) [78:com.typesafe.akka.actor:2.5.11] at akka.actor.ActorCell.receiveMessage(ActorCell.scala:590) [78:com.typesafe.akka.actor:2.5.11] at akka.actor.ActorCell.invoke(ActorCell.scala:559) [78:com.typesafe.akka.actor:2.5.11] at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257) [78:com.typesafe.akka.actor:2.5.11] at akka.dispatch.Mailbox.run(Mailbox.scala:224) [78:com.typesafe.akka.actor:2.5.11] at akka.dispatch.Mailbox.exec(Mailbox.scala:234) [78:com.typesafe.akka.actor:2.5.11] at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [78:com.typesafe.akka.actor:2.5.11] at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [78:com.typesafe.akka.actor:2.5.11] at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [78:com.typesafe.akka.actor:2.5.11] at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [78:com.typesafe.akka.actor:2.5.11]