Noriaki Horiuchi Tech Blog

CreationException: Unable to create injector

Published by Noriaki Horiuchi

July 3rd, 2015

原因：jdbcとplay-slickが依存性に含まれていると、それぞれがplay.api.db.DBApiを使用するので、競合してエラーとなる。

対策：jdbcの除去

参考：play-framework > [play 2.4.0-RC5 Scala] evolutions and injector error with play-slick

! @6mk485065 - Internal server error, for (GET) [/] ->

play.api.UnexpectedException: Unexpected exception[CreationException: Unable to create injector, see the following errors:

1) A binding to play.api.db.DBApi was already configured at play.api.db.slick.evolutions.EvolutionsModule.bindings(EvolutionsModule.scala:14):
Binding(interface play.api.db.DBApi to ConstructionTarget(class play.api.db.slick.evolutions.internal.DBApiAdapter) in interface javax.inject.Singleton) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1).
  at play.api.db.DBModule.bindings(DBModule.scala:25):
Binding(interface play.api.db.DBApi to ProviderConstructionTarget(class play.api.db.DBApiProvider)) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1)

1 error]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:165) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:121) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at scala.Option.map(Option.scala:146) ~[scala-library-2.11.6.jar:na]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:121) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1.apply(DevServerStart.scala:119) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at scala.util.Success.flatMap(Try.scala:230) ~[scala-library-2.11.6.jar:na]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:119) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:111) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) ~[scala-library-2.11.6.jar:na]
    at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) ~[scala-library-2.11.6.jar:na]
    at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1423) ~[na:1.8.0_05]
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[na:1.8.0_05]
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:902) ~[na:1.8.0_05]
    at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1689) ~[na:1.8.0_05]
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1644) ~[na:1.8.0_05]
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) ~[na:1.8.0_05]
Caused by: com.google.inject.CreationException: Unable to create injector, see the following errors:

1) A binding to play.api.db.DBApi was already configured at play.api.db.slick.evolutions.EvolutionsModule.bindings(EvolutionsModule.scala:14):
Binding(interface play.api.db.DBApi to ConstructionTarget(class play.api.db.slick.evolutions.internal.DBApiAdapter) in interface javax.inject.Singleton) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1).
  at play.api.db.DBModule.bindings(DBModule.scala:25):
Binding(interface play.api.db.DBApi to ProviderConstructionTarget(class play.api.db.DBApiProvider)) (via modules: com.google.inject.util.Modules$OverrideModule -> play.api.inject.guice.GuiceableModuleConversions$$anon$1)

1 error
    at com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:466) ~[guice-4.0.jar:na]
    at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:155) ~[guice-4.0.jar:na]
    at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:107) ~[guice-4.0.jar:na]
    at com.google.inject.Guice.createInjector(Guice.java:96) ~[guice-4.0.jar:na]
    at com.google.inject.Guice.createInjector(Guice.java:73) ~[guice-4.0.jar:na]
    at com.google.inject.Guice.createInjector(Guice.java:62) ~[guice-4.0.jar:na]
    at play.api.inject.guice.GuiceBuilder.injector(GuiceInjectorBuilder.scala:126) ~[play_2.11-2.4.1.jar:2.4.1]
    at play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:93) ~[play_2.11-2.4.1.jar:2.4.1]
    at play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21) ~[play_2.11-2.4.1.jar:2.4.1]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:153) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1$$anonfun$2.apply(DevServerStart.scala:150) ~[play-server_2.11-2.4.1.jar:2.4.1]
    at play.utils.Threads$.withContextClassLoader(Threads.scala:21) ~[play_2.11-2.4.1.jar:2.4.1]
    at play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(DevServerStart.scala:150) ~[play-server_2.11-2.4.1.jar:2.4.1]
    ... 15 common frames omitted