play.sbt.PlayExceptions$CompilationException: Compilation error[Cannot use a method returning java.util.concurrent.CompletionStage[play.mvc.Result] as a Handler for requests]

Stack Overflow | MrHappy | 4 months ago
  1. 0

    Compilation error: Cannot us a method returning CompetionStage as a Handler for requests

    Stack Overflow | 4 months ago | MrHappy
    play.sbt.PlayExceptions$CompilationException: Compilation error[Cannot use a method returning java.util.concurrent.CompletionStage[play.mvc.Result] as a Handler for requests]
  2. 0

    Play Framework For Scala: Compilation error[type Application is not a member of package controllers]

    Stack Overflow | 2 years ago | user4955663
    play.sbt.PlayExceptions$CompilationException: Compilation error[type Application is not a member of package controllers]
  3. 0

    GitHub comment 21#125364296

    GitHub | 1 year ago | siderakis
    play.sbt.PlayExceptions$CompilationException: Compilation error[class A is not a case class nor a case object]
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  5. 0

    GitHub comment 59#139927486

    GitHub | 1 year ago | falmp
    play.sbt.PlayExceptions$CompilationException: Compilation error[not found: value x$1]
  6. 0

    Getting “No unapply or unapplySeq function found” exception in Scala Play application

    Stack Overflow | 1 year ago | Ronnie
    play.sbt.PlayExceptions$CompilationException: Compilation error[No unapply or unapplySeq function found]

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Root Cause Analysis

  1. play.sbt.PlayExceptions$CompilationException

    Compilation error[Cannot use a method returning java.util.concurrent.CompletionStage[play.mvc.Result] as a Handler for requests]

    at play.sbt.PlayExceptions$CompilationException$.apply()
  2. play.sbt
    PlayExceptions$CompilationException$.apply
    1. play.sbt.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27)[na:na]
    2. play.sbt.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27)[na:na]
    2 frames
  3. Scala
    Option.map
    1. scala.Option.map(Option.scala:145)[scala-library-2.11.7.jar:na]
    1 frame
  4. play.sbt.run
    PlayReload$$anonfun$taskFailureHandler$1.apply
    1. play.sbt.run.PlayReload$$anonfun$taskFailureHandler$1.apply(PlayReload.scala:49)[na:na]
    2. play.sbt.run.PlayReload$$anonfun$taskFailureHandler$1.apply(PlayReload.scala:44)[na:na]
    2 frames
  5. Scala
    Option.map
    1. scala.Option.map(Option.scala:145)[scala-library-2.11.7.jar:na]
    1 frame
  6. play.sbt.run
    PlayReload$$anonfun$compile$1.apply
    1. play.sbt.run.PlayReload$.taskFailureHandler(PlayReload.scala:44)[na:na]
    2. play.sbt.run.PlayReload$.compileFailure(PlayReload.scala:40)[na:na]
    3. play.sbt.run.PlayReload$$anonfun$compile$1.apply(PlayReload.scala:17)[na:na]
    4. play.sbt.run.PlayReload$$anonfun$compile$1.apply(PlayReload.scala:17)[na:na]
    4 frames