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    Check if the field you try to read really exists in the database. If it is optional, just use com.mongodb.casbah.commons.MongoDBObject#getAs

Solutions on the web

via GitHub by Mygod
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key not found: toolbar_light_dark
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key not found: BinaryType
via GitHub by PallaviPersistent
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via Stack Overflow by James Little
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via GitHub by laurayuwen
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key not found: Actor[akka.tcp://ClusterSystem@xxx/user/sharding/ConnectionActives#5543584 72]
java.util.NoSuchElementException: key not found: toolbar_light_dark at scala.collection.MapLike$class.default(MapLike.scala:228) at scala.collection.AbstractMap.default(Map.scala:58) at scala.collection.MapLike$class.apply(MapLike.scala:141) at scala.collection.AbstractMap.apply(Map.scala:58) at android.Resources$$anonfun$generateViewHolders$1$$anonfun$android$Resources$$anonfun$$processViews$1$1.apply(resources.scala:747) at android.Resources$$anonfun$generateViewHolders$1$$anonfun$android$Resources$$anonfun$$processViews$1$1.apply(resources.scala:737) at scala.collection.LinearSeqOptimized$class.foldLeft(LinearSeqOptimized.scala:111) at scala.collection.immutable.List.foldLeft(List.scala:84) at android.Resources$$anonfun$generateViewHolders$1.android$Resources$$anonfun$$processViews$1(resources.scala:737) at android.Resources$$anonfun$generateViewHolders$1$$anonfun$49.apply(resources.scala:767) at android.Resources$$anonfun$generateViewHolders$1$$anonfun$49.apply(resources.scala:764) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at scala.collection.AbstractIterator.foreach(Iterator.scala:1157) at scala.collection.MapLike$DefaultValuesIterable.foreach(MapLike.scala:206) at scala.collection.TraversableLike$class.map(TraversableLike.scala:244) at scala.collection.AbstractTraversable.map(Traversable.scala:105) at android.Resources$$anonfun$generateViewHolders$1.apply(resources.scala:764) at android.Resources$$anonfun$generateViewHolders$1.apply(resources.scala:701) at sbt.FileFunction$$anonfun$cached$1.apply(Tracked.scala:235) at sbt.FileFunction$$anonfun$cached$1.apply(Tracked.scala:235) at sbt.FileFunction$$anonfun$cached$2$$anonfun$apply$3$$anonfun$apply$4.apply(Tracked.scala:249) at sbt.FileFunction$$anonfun$cached$2$$anonfun$apply$3$$anonfun$apply$4.apply(Tracked.scala:245) at sbt.Difference.apply(Tracked.scala:224) at sbt.Difference.apply(Tracked.scala:206) at sbt.FileFunction$$anonfun$cached$2$$anonfun$apply$3.apply(Tracked.scala:245) at sbt.FileFunction$$anonfun$cached$2$$anonfun$apply$3.apply(Tracked.scala:244) at sbt.Difference.apply(Tracked.scala:224) at sbt.Difference.apply(Tracked.scala:200) at sbt.FileFunction$$anonfun$cached$2.apply(Tracked.scala:244) at sbt.FileFunction$$anonfun$cached$2.apply(Tracked.scala:242) at android.Resources$.generateViewHolders(resources.scala:792) at android.Tasks$$anonfun$27.apply(tasks.scala:309) at android.Tasks$$anonfun$27.apply(tasks.scala:308) at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47) at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40) at sbt.std.Transform$$anon$4.work(System.scala:63) at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228) at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228) at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17) at sbt.Execute.work(Execute.scala:237) at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228) at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228) at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159) at sbt.CompletionService$$anon$2.call(CompletionService.scala:28) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)