エラー
play.api.UnexpectedException: Unexpected exception[CreationException: Unable to create injector, see the following errors:
1) Error injecting method, java.lang.NoClassDefFoundError: akka/actor/CoordinatedShutdown$Reason
at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
at play.api.db.slick.SlickModule.$anonfun$namedDatabaseConfigBindings$1(SlickModule.scala:43):
Binding(interface play.api.db.slick.DatabaseConfigProvider qualified with QualifierInstance(@play.db.NamedDatabase(value=default)) to ProviderTarget(play.api.db.slick.NamedDatabaseConfigProvider@a4117d7)) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1)
1 error]
at play.core.server.DevServerStart$$anon$1.reload(DevServerStart.scala:186)
at play.core.server.DevServerStart$$anon$1.get(DevServerStart.scala:124)
at play.core.server.AkkaHttpServer.handleRequest(AkkaHttpServer.scala:189)
at play.core.server.AkkaHttpServer.$anonfun$createServerBinding$1(AkkaHttpServer.scala:106)
at akka.stream.impl.fusing.MapAsync$$anon$23.onPush(Ops.scala:1172)
at akka.stream.impl.fusing.GraphInterpreter.processPush(GraphInterpreter.scala:499)
at akka.stream.impl.fusing.GraphInterpreter.processEvent(GraphInterpreter.scala:462)
at akka.stream.impl.fusing.GraphInterpreter.execute(GraphInterpreter.scala:368)
at akka.stream.impl.fusing.GraphInterpreterShell.runBatch(ActorGraphInterpreter.scala:571)
at akka.stream.impl.fusing.GraphInterpreterShell$AsyncInput.execute(ActorGraphInterpreter.scala:457)
解決策
akka-actorとakka-streamを2.5.6から2.5.10に変える