play.api.Application$$anon$1: Execution exception[[NoSuchElementException: Path ?a/<http://xmlns.com/foaf/0.1/name> not found on entity.]]

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Execution exception[[NoSuchElementException: Path ?a/<http://xmlns.com/foaf/0.1/name> not found on entity.]]
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play.api.Application$$anon$1: Execution exception[[NoSuchElementException: Path ?a/<http://xmlns.com/foaf/0.1/name> not found on entity.]]
at de.fuberlin.wiwiss.silk.entity.EntityDescription.pathIndex(EntityDescription.scala:31)
at de.fuberlin.wiwiss.silk.linkagerule.input.PathInput.eval(PathInput.scala:50)
at de.fuberlin.wiwiss.silk.linkagerule.input.PathInput.apply(PathInput.scala:37)
at de.fuberlin.wiwiss.silk.linkagerule.input.TransformInput$$anonfun$2.apply(TransformInput.scala:31)
at de.fuberlin.wiwiss.silk.linkagerule.input.TransformInput$$anonfun$2.apply(TransformInput.scala:31)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.immutable.List.foreach(List.scala:318)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at de.fuberlin.wiwiss.silk.linkagerule.input.TransformInput.apply(TransformInput.scala:31)
at de.fuberlin.wiwiss.silk.linkagerule.similarity.Comparison.apply(Comparison.scala:48)
at de.fuberlin.wiwiss.silk.linkagerule.evaluation.DetailedEvaluator$.evaluateComparison(DetailedEvaluator.scala:76)
at de.fuberlin.wiwiss.silk.linkagerule.evaluation.DetailedEvaluator$.de$fuberlin$wiwiss$silk$linkagerule$evaluation$DetailedEvaluator$$evaluateOperator(DetailedEvaluator.scala:46)
at de.fuberlin.wiwiss.silk.linkagerule.evaluation.DetailedEvaluator$$anonfun$2.apply(DetailedEvaluator.scala:57)
at de.fuberlin.wiwiss.silk.linkagerule.evaluation.DetailedEvaluator$$anonfun$2.apply(DetailedEvaluator.scala:55)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.immutable.List.foreach(List.scala:318)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at de.fuberlin.wiwiss.silk.linkagerule.evaluation.DetailedEvaluator$.evaluateAggregation(DetailedEvaluator.scala:55)
at de.fuberlin.wiwiss.silk.linkagerule.evaluation.DetailedEvaluator$.de$fuberlin$wiwiss$silk$linkagerule$evaluation$DetailedEvaluator$$evaluateOperator(DetailedEvaluator.scala:45)
at de.fuberlin.wiwiss.silk.linkagerule.evaluation.DetailedEvaluator$.apply(DetailedEvaluator.scala:28)
at controllers.tabs.GenerateLinks$$anonfun$links$1$$anonfun$links$1$1.apply(GenerateLinks.scala:31)
at controllers.tabs.GenerateLinks$$anonfun$links$1$$anonfun$links$1$1.apply(GenerateLinks.scala:30)
at scala.collection.GenSeqViewLike$FlatMapped$class.index(GenSeqViewLike.scala:55)
at scala.collection.SeqViewLike$$anon$4.index$lzycompute(SeqViewLike.scala:79)
at scala.collection.SeqViewLike$$anon$4.index(SeqViewLike.scala:79)
at scala.collection.GenSeqViewLike$FlatMapped$class.length(GenSeqViewLike.scala:65)
at scala.collection.SeqViewLike$$anon$4.length(SeqViewLike.scala:79)
at scala.collection.SeqLike$class.size(SeqLike.scala:106)
at views.html.widgets.linksTable$.render$1(linksTable.template.scala:43)
at views.html.widgets.linksTable$.apply(linksTable.template.scala:244)
at controllers.tabs.GenerateLinks$$anonfun$links$1.apply(GenerateLinks.scala:40)
at controllers.tabs.GenerateLinks$$anonfun$links$1.apply(GenerateLinks.scala:23)
at play.api.mvc.ActionBuilder$$anonfun$apply$11.apply(Action.scala:255)
at play.api.mvc.ActionBuilder$$anonfun$apply$11.apply(Action.scala:255)
at play.api.mvc.ActionBuilder$$anonfun$apply$10.apply(Action.scala:221)
at play.api.mvc.ActionBuilder$$anonfun$apply$10.apply(Action.scala:220)
at play.api.mvc.Action$.invokeBlock(Action.scala:357)
at play.api.mvc.ActionBuilder$$anon$1.apply(Action.scala:309)
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:109)
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:109)
at play.utils.Threads$.withContextClassLoader(Threads.scala:18)
at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:108)
at scala.Option.map(Option.scala:145)
at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:107)
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:481)
at play.api.libs.iteratee.Iteratee$$anonfun$mapM$1.apply(Iteratee.scala:481)
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:517)
at play.api.libs.iteratee.Iteratee$$anonfun$flatMapM$1.apply(Iteratee.scala:517)
at play.api.libs.iteratee.Iteratee$$anonfun$flatMap$1$$anonfun$apply$13.apply(Iteratee.scala:493)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:42)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

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