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  1. ,

    The application cannot find the configuration file. Reference the application.properties file like this :

    val config=ConfigFactory.load("resources/application.properties")
    

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com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'akka.event-handlers'	at com.typesafe.config.impl.SimpleConfig.findKey(SimpleConfig.java:115)	at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:136)	at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:142)	at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:150)	at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:155)	at com.typesafe.config.impl.SimpleConfig.getList(SimpleConfig.java:203)	at com.typesafe.config.impl.SimpleConfig.getHomogeneousUnwrappedList(SimpleConfig.java:260)	at com.typesafe.config.impl.SimpleConfig.getStringList(SimpleConfig.java:318)	at akka.actor.ActorSystem$Settings.(ActorSystem.scala:150)	at akka.actor.ActorSystemImpl.(ActorSystem.scala:470)	at akka.actor.ActorSystem$.apply(ActorSystem.scala:111)	at akka.actor.ActorSystem$.apply(ActorSystem.scala:104)	at org.apache.spark.util.AkkaUtils$.org$apache$spark$util$AkkaUtils$$doCreateActorSystem(AkkaUtils.scala:121)	at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:54)	at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:53)	at org.apache.spark.util.Utils$$anonfun$startServiceOnPort$1.apply$mcVI$sp(Utils.scala:1446)	at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141)	at org.apache.spark.util.Utils$.startServiceOnPort(Utils.scala:1442)	at org.apache.spark.util.AkkaUtils$.createActorSystem(AkkaUtils.scala:56)	at org.apache.spark.SparkEnv$.create(SparkEnv.scala:153)	at org.apache.spark.SparkContext.(SparkContext.scala:203)	at org.apache.mahout.sparkbindings.package$.mahoutSparkContext(package.scala:95)	at org.apache.mahout.drivers.MahoutSparkDriver.start(MahoutSparkDriver.scala:81)	at org.apache.mahout.drivers.ItemSimilarityDriver$.start(ItemSimilarityDriver.scala:128)	at org.apache.mahout.drivers.ItemSimilarityDriver$.process(ItemSimilarityDriver.scala:211)	at org.apache.mahout.drivers.ItemSimilarityDriver$$anonfun$main$1.apply(ItemSimilarityDriver.scala:116)	at org.apache.mahout.drivers.ItemSimilarityDriver$$anonfun$main$1.apply(ItemSimilarityDriver.scala:114)	at scala.Option.map(Option.scala:145)	at org.apache.mahout.drivers.ItemSimilarityDriver$.main(ItemSimilarityDriver.scala:114)	at org.apache.mahout.drivers.ItemSimilarityDriver.main(ItemSimilarityDriver.scala)