IDEA Scala:找不到输出目录

尝试使用scala插件在IDEA中使用scala:

我的HelloWorld对象:

object HelloWorld {

  def main(args: Array[String]) {
    println("Hello")
  }

}

而有时我从上下文菜单中按下"运行的HelloWorld"当得到一个错误.

    scalac: Error: Could not find an output directory for /Users/username/Work/src/sandbox/src/HelloWorld.scala in List((/Users/username/work/src/sandbox/src,/Users/username/work/src/sandbox/out/production/sandbox))
scala.reflect.internal.FatalError: Could not find an output directory for /Users/username/Work/src/sandbox/src/HelloWorld.scala in List((/Users/username
/work/src/sandbox/src,/Users/username/work/src/sandbox/out/production/sandbox))
at scala.tools.nsc.settings.MutableSettings$OutputDirs.outputDirFor(MutableSettings.scala:303)
at scala.tools.nsc.backend.jvm.BytecodeWriters$class.outputDirectory(BytecodeWriters.scala:26)
at scala.tools.nsc.backend.jvm.BytecodeWriters$class.scala$tools$nsc$backend$jvm$BytecodeWriters$$getFile(BytecodeWriters.scala:37)
at scala.tools.nsc.backend.jvm.BytecodeWriters$ClassBytecodeWriter$class.writeClass(BytecodeWriters.scala:89)
at scala.tools.nsc.backend.jvm.GenASM$AsmPhase$$anon$4.writeClass(GenASM.scala:67)
at scala.tools.nsc.backend.jvm.GenASM$JBuilder.writeIfNotTooBig(GenASM.scala:458)
at scala.tools.nsc.backend.jvm.GenASM$JMirrorBuilder.genMirrorClass(GenASM.scala:2954)
at scala.tools.nsc.backend.jvm.GenASM$AsmPhase.run(GenASM.scala:113)
at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1583)
at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1557)
at scala.tools.nsc.Global$Run.compileSources(Global.scala:1553)
at scala.tools.nsc.Global$Run.compile(Global.scala:1662)
at xsbt.CachedCompiler0.run(CompilerInterface.scala:126)
at xsbt.CachedCompiler0.run(CompilerInterface.scala:102)
at xsbt.CompilerInterface.run(CompilerInterface.scala:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:102)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:48)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:41)
at org.jetbrains.jps.incremental.scala.local.IdeaIncrementalCompiler.compile(IdeaIncrementalCompiler.scala:26)
at org.jetbrains.jps.incremental.scala.local.LocalServer.compile(LocalServer.scala:25)
at org.jetbrains.jps.incremental.scala.remote.Main$.make(Main.scala:58)
at org.jetbrains.jps.incremental.scala.remote.Main$.nailMain(Main.scala:21)
at org.jetbrains.jps.incremental.scala.remote.Main.nailMain(Main.scala)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.martiansoftware.nailgun.NGSession.run(NGSession.java:319)

这个错误非常烦人,因为修复它我需要重新启动IDEA,清理/编译我的项目,添加/删除启动配置几次.也可以手动从终端执行正确的错误命令行.

看错误评论:

找不到以下输出目录:
/Users/username/Work /src/sandbox/src/HelloWorld.scala

在

/ Users/username/work/src/sandbox/src

/ Users/username/work/src/sandbox/out/production/sandbox

根据您运行的环境,上/下案例差异中的IntelliJ很重要.请确保您的user.home属性设置正确.