scala - Can't unmarshall json HttpEntity with spray-json -


i trying run simple example documentation without changes:

import spray.json.defaultjsonprotocol import spray.httpx.unmarshalling._ import spray.httpx.marshalling._ import spray.http._ import httpcharsets._ import mediatypes._  case class person(name: string, firstname: string, age: int)  object myjsonprotocol extends defaultjsonprotocol {   implicit val personformat = jsonformat3(person) }  import myjsonprotocol._ import spray.httpx.sprayjsonsupport._ import spray.util._  val bob = person("bob", "parr", 32) val body = httpentity(   contenttype = contenttype(`application/json`, `utf-8`),   string = """|{   |  "name": "bob",   |  "firstname": "parr",   |  "age": 32   |}""".stripmarginwithnewline("\n") )  marshal(bob) body.as[person]

and fails on last line ("body.as[person]") following error , stacktrace:

exception in thread "main" java.lang.nosuchmethoderror: spray.json.jsonparser$.apply(ljava/lang/string;)lspray/json/jsvalue;     @ spray.httpx.sprayjsonsupport$$anonfun$sprayjsonunmarshaller$1.applyorelse(sprayjsonsupport.scala:36)     @ spray.httpx.sprayjsonsupport$$anonfun$sprayjsonunmarshaller$1.applyorelse(sprayjsonsupport.scala:34)     @ scala.runtime.abstractpartialfunction.apply(abstractpartialfunction.scala:36)     @ spray.httpx.unmarshalling.unmarshaller$$anon$1$$anonfun$unmarshal$1.apply(unmarshaller.scala:29)     @ spray.httpx.unmarshalling.simpleunmarshaller.protect(simpleunmarshaller.scala:40)     @ spray.httpx.unmarshalling.unmarshaller$$anon$1.unmarshal(unmarshaller.scala:29)     @ spray.httpx.unmarshalling.simpleunmarshaller.apply(simpleunmarshaller.scala:29)     @ spray.httpx.unmarshalling.simpleunmarshaller.apply(simpleunmarshaller.scala:23)     @ spray.httpx.unmarshalling.package$pimpedhttpentity.as(package.scala:39)     @ com.example.m1$.delayedendpoint$com$example$m1$1(m1.scala:34)     @ com.example.m1$delayedinit$body.apply(m1.scala:3)     @ scala.function0$class.apply$mcv$sp(function0.scala:34)     @ scala.runtime.abstractfunction0.apply$mcv$sp(abstractfunction0.scala:12)     @ scala.app$$anonfun$main$1.apply(app.scala:76)     @ scala.app$$anonfun$main$1.apply(app.scala:76)     @ scala.collection.immutable.list.foreach(list.scala:381)     @ scala.collection.generic.traversableforwarder$class.foreach(traversableforwarder.scala:35)     @ scala.app$class.main(app.scala:76)     @ com.example.m1$.main(m1.scala:3)     @ com.example.m1.main(m1.scala)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:62)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:497)     @ com.intellij.rt.execution.application.appmain.main(appmain.java:140)

what can wrong code? dependencies following (build.sbt):

scalaversion := "2.11.7"  librarydependencies ++= seq(   "io.spray" %% "spray-can" % "1.3.1",   "io.spray" %% "spray-routing" % "1.3.1",   "io.spray" %% "spray-json" % "1.3.2",   "com.typesafe.akka" %% "akka-actor" % "2.3.11" )

i found bug related incompatibility between spray-httpx , spray-json seems has been resolved. using recent stable versions of libraries.

what else can wrong?

looks version incompatibility issue between spray-http , spray-json, these specific versions work without problems:

librarydependencies ++= seq(   "io.spray" %% "spray-can" % "1.3.3",   "io.spray" %% "spray-routing" % "1.3.3",   "io.spray" %% "spray-json" % "1.3.2",   "com.typesafe.akka" %% "akka-actor" % "2.3.11" )

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