我正在编译一个项目，该项目有77个Scala 2.10.5的Scala文件。
我收到0条警告和1条奇怪的错误消息：
[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}
错误信息没有指示错误的位置，所以我认为这是一个标量内部错误。我应该怎么调试它？
非常感谢你的帮助。
更新：我启用了调试模式，并看到了完整的堆栈跟踪：
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
这对识别问题有帮助吗？
好的，我找到了一个解决方案：
scalac 2.10.5在打印错误的行号时出现了一个小故障，这确实是我代码中的语法错误。
当我切换到scalac 2.11.7时，行号被打印出来，这使得修复问题变得很容易