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我正在编译一个具有Scala 2.10.5的77 Scala文件的项目。Scala编译器抛出“内部”类型不匹配错误，但没有提供错误位置
我得到0警告和1个奇怪的错误消息：
[ERROR] type mismatch;
found : Array[?B]
required: scala.collection.GenTraversableOnce[?]
Note that implicit conversions are not applicable because they are ambiguous:
both method booleanArrayOps in object Predef of type (xs: Array[Boolean])scala.collection.mutable.ArrayOps[Boolean]
and method byteArrayOps in object Predef of type (xs: Array[Byte])scala.collection.mutable.ArrayOps[Byte]
are possible conversion functions from Array[?B] to scala.collection.GenTraversableOnce[?]
[ERROR] one error found
[INFO] ------------------ ....{this line is irrelevant}
错误信息没有显示错误的位置，所以我认为这是一个scalac内部错误。我应该怎么做才能调试它？
非常感谢您的帮助。
更新：我启用调试模式，看到完整的堆栈跟踪：
Caused by: Compilation failed
at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:105)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:48)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:41)
at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply$mcV$sp(AggressiveCompile.scala:99)
at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply(AggressiveCompile.scala:99)
at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply(AggressiveCompile.scala:99)
at sbt.compiler.AggressiveCompile.sbt$compiler$AggressiveCompile$$timed(AggressiveCompile.scala:166)
at sbt.compiler.AggressiveCompile$$anonfun$3.compileScala$1(AggressiveCompile.scala:98)
at sbt.compiler.AggressiveCompile$$anonfun$3.apply(AggressiveCompile.scala:143)
at sbt.compiler.AggressiveCompile$$anonfun$3.apply(AggressiveCompile.scala:87)
at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:39)
at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:37)
at sbt.inc.IncrementalCommon.cycle(Incremental.scala:99)
at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:38)
at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:37)
at sbt.inc.Incremental$.manageClassfiles(Incremental.scala:65)
at sbt.inc.Incremental$.compile(Incremental.scala:37)
at sbt.inc.IncrementalCompile$.apply(Compile.scala:27)
at sbt.compiler.AggressiveCompile.compile2(AggressiveCompile.scala:157)
at sbt.compiler.AggressiveCompile.compile1(AggressiveCompile.scala:71)
at com.typesafe.zinc.Compiler.compile(Compiler.scala:184)
at com.typesafe.zinc.Compiler.compile(Compiler.scala:164)
at sbt_inc.SbtIncrementalCompiler.compile(SbtIncrementalCompiler.java:92)
at scala_maven.ScalaCompilerSupport.incrementalCompile(ScalaCompilerSupport.java:303)
at scala_maven.ScalaCompilerSupport.compile(ScalaCompilerSupport.java:119)
at scala_maven.ScalaCompilerSupport.doExecute(ScalaCompilerSupport.java:99)
at scala_maven.ScalaMojoSupport.execute(ScalaMojoSupport.java:482)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
... 21 more
是识别问题有所帮助？
它不是“scalac内部错误”，它在你的代码中的错误。您需要查看源代码以找出问题所在。 – Dima
编译器的消息对我来说似乎非常简单 - 您的数组需要转换为'scala.collection.GenTraversableOnce'，但在作用域中有两个这样的隐式转换，因此编译器无法解析使用哪一个。如果不看实际的代码，不能进一步帮助。 – slouc