小编Edg*_*gar的帖子

我在R中使用rscala包调用预编译的Scala代码时遇到麻烦。

我有一个运行在version上的Scala项目2.11.12。我用sbt-assembly建造了一个胖子罐，并通过rscalarscala::scala("path-to-jar.jar")

但是，每当我尝试从包中运行任何函数/方法/任何内容时，都会收到以下错误：

java.lang.reflect.InvocationTargetException
java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;
    at myPackage.myClass$.myMethod(myClass.scala:116)
    at $line6.$read$$iw$$iw$$iw$$iw$.$anonfun$res0$1(<console>:16)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.ddahl.rscala.server.Server.$anonfun$invoke$3(Server.scala:305)
    at org.ddahl.rscala.server.Server.wrap(Server.scala:47)
    at org.ddahl.rscala.server.Server.invoke(Server.scala:305)
    at org.ddahl.rscala.server.Server.run(Server.scala:400)
    at org.ddahl.rscala.server.Main$.delayedEndpoint$org$ddahl$rscala$server$Main$1(Main.scala:105)
    at org.ddahl.rscala.server.Main$delayedInit$body.apply(Main.scala:11)
    at scala.Function0.apply$mcV$sp(Function0.scala:39)
    at scala.Function0.apply$mcV$sp$(Function0.scala:39)
    at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:17)
    at scala.App.$anonfun$main$1$adapted(App.scala:80)
    at scala.collection.immutable.List.foreach(List.scala:392)
    at scala.App.main(App.scala:80)
    at scala.App.main$(App.scala:78)
    at org.ddahl.rscala.server.Main$.main(Main.scala:11)
    at org.ddahl.rscala.server.Main.main(Main.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at scala.reflect.internal.util.ScalaClassLoader.$anonfun$run$2(ScalaClassLoader.scala:106)
    at scala.reflect.internal.util.ScalaClassLoader.asContext(ScalaClassLoader.scala:41)
    at scala.reflect.internal.util.ScalaClassLoader.asContext$(ScalaClassLoader.scala:37)
    at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.asContext(ScalaClassLoader.scala:132)
    at scala.reflect.internal.util.ScalaClassLoader.run(ScalaClassLoader.scala:106)
    at scala.reflect.internal.util.ScalaClassLoader.run$(ScalaClassLoader.scala:98)
    at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:132)
    at scala.tools.nsc.CommonRunner.run(ObjectRunner.scala:28)
    at scala.tools.nsc.CommonRunner.run$(ObjectRunner.scala:27)
    at …