[ClassCastException: org.elasticsearch.search.aggregations.bucket.terms.UnmappedTerms cannot be cast to org.elasticsearch.search.aggregations.bucket.terms.TermsAggregator]

[simantpurohit]

I am getting this error when I am trying to run the java sample.
I have this version of activator : https://downloads.typesafe.com/typesafe-activator/1.3.10/typesafe-activator-1.3.10-minimal.zip

When I visit the link localhost:9000 after starting the application, I get the error

[ClassCastException: org.elasticsearch.search.aggregations.bucket.terms.UnmappedTerms cannot be cast to org.elasticsearch.search.aggregations.bucket.terms.TermsAggregator]
In C:\Users\Simant\Downloads\play2-elasticsearch-master\samples\elasticsearch-java\app\controllers\Application.java:48

The stack trace on the console shows:

[info] p.c.s.NettyServer - Listening for HTTP on /0:0:0:0:0:0:0:0:9000

(Server started, use Ctrl+D to stop and go back to the console...)

[warn] application - Logger configuration in conf files is deprecated and has no effect. Use a logback configuration file instead.
[info] application - Elasticsearch : Settings {client.transport.sniff=false, cluster.name=play2-elasticsearch, script.engine.groovy.inline.update=on, path.data=data, path.home=home}
[info] application - ElasticSearch : Starting in Local Mode
[warn] o.e.bootstrap - JNA not found. native methods will be disabled.
java.lang.ClassNotFoundException: com.sun.jna.Native
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_71]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_71]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_71]
at java.lang.Class.forName0(Native Method) ~[na:1.8.0_71]
at java.lang.Class.forName(Class.java:264) ~[na:1.8.0_71]
at org.elasticsearch.bootstrap.Natives.(Natives.java:45) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.bootstrap.BootstrapInfo.isMemoryLocked(BootstrapInfo.java:44) [elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.monitor.process.ProcessProbe.processInfo(ProcessProbe.java:139) [elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.monitor.process.ProcessService.(ProcessService.java:44) [elasticsearch-2.1.1.jar:2.1.1]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [na:1.8.0_71]
[info] application - ElasticSearch : Started in Local Mode
[error] application - ElasticSearch : An unexpected exception has occurred during index preparation. Index has not been created and prepared.
org.elasticsearch.index.mapper.MapperParsingException: Root mapping definition has unsupported parameters: [players : {properties={players={type=nested}, name={type=string, analyzer=team_name_analyzer}}}]
at org.elasticsearch.index.mapper.DocumentMapperParser.checkNoRemainingFields(DocumentMapperParser.java:192) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.index.mapper.DocumentMapperParser.parse(DocumentMapperParser.java:180) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.index.mapper.DocumentMapperParser.parseCompressed(DocumentMapperParser.java:121) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.index.mapper.MapperService.parse(MapperService.java:391) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.cluster.metadata.MetaDataMappingService$2.execute(MetaDataMappingService.java:386) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:388) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:231) ~[elasticsearch-2.1.1.jar:2.1.1]
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194) ~[elasticsearch-2.1.1.jar:2.1.1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_71]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_71]
[info] play.api.Play - Application started (Dev)
[error] application -

! @6ppddgok4 - Internal server error, for (GET) [/] ->

play.api.http.HttpErrorHandlerExceptions$$anon$1: Execution exception[[ClassCastException: org.elasticsearch.search.aggregations.bucket.terms.UnmappedTerms cannot be cast to org.elasticsearch.search.aggregations.bucket.terms.TermsAggregator]]
at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:265) ~[play_2.11-2.4.6.jar:2.4.6]
at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:191) ~[play_2.11-2.4.6.jar:2.4.6]
at play.api.GlobalSettings$class.onError(GlobalSettings.scala:179) [play_2.11-2.4.6.jar:2.4.6]
at play.api.DefaultGlobal$.onError(GlobalSettings.scala:212) [play_2.11-2.4.6.jar:2.4.6]
at play.api.http.GlobalSettingsHttpErrorHandler.onServerError(HttpErrorHandler.scala:94) [play_2.11-2.4.6.jar:2.4.6]
at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$9$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:151) [play-netty-server_2.11-2.4.6.jar:2.4.6]
at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$9$$anonfun$apply$1.applyOrElse(PlayDefaultUpstreamHandler.scala:148) [play-netty-server_2.11-2.4.6.jar:2.4.6]
at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36) [scala-library-2.11.7.jar:na]
at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:216) [scala-library-2.11.7.jar:na]
at scala.util.Try$.apply(Try.scala:192) [scala-library-2.11.7.jar:na]
Caused by: java.lang.ClassCastException: org.elasticsearch.search.aggregations.bucket.terms.UnmappedTerms cannot be cast to org.elasticsearch.search.aggregations.bucket.terms.TermsAggregator
at controllers.Application.index(Application.java:48) ~[classes/:na]
at router.Routes$$anonfun$routes$1$$anonfun$applyOrElse$1$$anonfun$apply$1.apply(Routes.scala:90) ~[classes/:na]
at router.Routes$$anonfun$routes$1$$anonfun$applyOrElse$1$$anonfun$apply$1.apply(Routes.scala:90) ~[classes/:na]
at play.core.routing.HandlerInvokerFactory$$anon$4.resultCall(HandlerInvoker.scala:136) ~[play_2.11-2.4.6.jar:2.4.6]
at play.core.routing.HandlerInvokerFactory$JavaActionInvokerFactory$$anon$14$$anon$3$$anon$1.invocation(HandlerInvoker.scala:127) ~[play_2.11-2.4.6.jar:2.4.6]
at play.core.j.JavaAction$$anon$1.call(JavaAction.scala:70) ~[play_2.11-2.4.6.jar:2.4.6]
at play.http.DefaultHttpRequestHandler$1.call(DefaultHttpRequestHandler.java:20) ~[play_2.11-2.4.6.jar:2.4.6]
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94) ~[play_2.11-2.4.6.jar:2.4.6]
at play.core.j.JavaAction$$anonfun$7.apply(JavaAction.scala:94) ~[play_2.11-2.4.6.jar:2.4.6]
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) [scala-library-2.11.7.jar:na]