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社区首页 >问答首页 >java.lang.NoSuchMethodError: scala.Predef$.refArrayOps

java.lang.NoSuchMethodError: scala.Predef$.refArrayOps
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Stack Overflow用户
提问于 2016-10-30 20:16:37
回答 8查看 79.3K关注 0票数 53

我有以下类:

代码语言:javascript
复制
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)
  }

}

它有以下单元测试:

代码语言:javascript
复制
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,我得到以下错误:

代码语言:javascript
复制
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:

代码语言:javascript
复制
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"

我不知道这是什么原因。我的类和单元测试看起来很简单。有什么想法吗?

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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/40328948

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