java.lang.NoSuchMethodError: scala.Predef$.refArrayOps

本文介绍了java.lang.NoSuchMethodError: scala.Predef$.refArrayOps的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有以下课程:

import scala.util.{Success, Failure, Try}


class MyClass {

  def openFile(fileName: String): Try[String]  = {
    Failure( new Exception("some message"))
  }

  def main(args: Array[String]): Unit = {
    openFile(args.head)
  }

}

其中有以下单元测试:

class MyClassTest extends org.scalatest.FunSuite {

  test("pass inexistent file name") {
    val myClass = new MyClass()
    assert(myClass.openFile("./noFile").failed.get.getMessage == "Invalid file name")
  }

}

当我运行 sbt test 时，出现以下错误:

When I run sbt test I get the following error:

java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;
        at org.scalatest.tools.FriendlyParamsTranslator$.translateArguments(FriendlyParamsTranslator.scala:174)
        at org.scalatest.tools.Framework.runner(Framework.scala:918)
        at sbt.Defaults$$anonfun$createTestRunners$1.apply(Defaults.scala:533)
        at sbt.Defaults$$anonfun$createTestRunners$1.apply(Defaults.scala:527)
        at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
        at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
        at scala.collection.immutable.Map$Map1.foreach(Map.scala:109)
        at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
        at scala.collection.AbstractTraversable.map(Traversable.scala:105)
        at sbt.Defaults$.createTestRunners(Defaults.scala:527)
        at sbt.Defaults$.allTestGroupsTask(Defaults.scala:543)
        at sbt.Defaults$$anonfun$testTasks$4.apply(Defaults.scala:410)
        at sbt.Defaults$$anonfun$testTasks$4.apply(Defaults.scala:410)
        at scala.Function8$$anonfun$tupled$1.apply(Function8.scala:35)
        at scala.Function8$$anonfun$tupled$1.apply(Function8.scala:34)
        at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
        at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
        at sbt.std.Transform$$anon$4.work(System.scala:63)
        at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
        at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:226)
        at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
        at sbt.Execute.work(Execute.scala:235)
        at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
        at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:226)
        at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
        at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
[error] (test:executeTests) java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;

构建定义:

version := "1.0"

scalaVersion := "2.12.0"

// https://mvnrepository.com/artifact/org.scalatest/scalatest_2.11
libraryDependencies += "org.scalatest" % "scalatest_2.11" % "3.0.0"

我无法弄清楚是什么导致了这种情况.我的课程和单元测试看起来很简单.有什么想法吗?

I can't figure out what causes this. My class and unit test seem simple enough. Any ideas?

refArrayOps

java.lang.NoSuchMethodError: scala.Predef$.refArrayOps

问题描述

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