java.lang.IllegalArgumentException: requirement failed: Cannot get element from already empty input port (Merge.in1)

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via GitHub by johanandren
, 1 year ago
requirement failed: Cannot get element from already empty input port (Merge.in1)
via GitHub by soronpo
, 6 months ago
requirement failed:
via Stack Overflow by sgp
, 2 years ago
via Google Groups by Jeff Olson, 4 months ago
requirement failed
java.lang.IllegalArgumentException: requirement failed: Cannot get element from already empty input port (Merge.in1)
at scala.Predef$.require(Predef.scala:224)
at akka.stream.stage.GraphStageLogic.grab(GraphStage.scala:381)
at akka.stream.scaladsl.Merge$$anon$1.akka$stream$scaladsl$Merge$$anon$$dequeueAndDispatch(Graph.scala:65)

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