running specs results in an error

Hi
   Im using idea with scala 2.7.7 on mac OSX. I've noticed that if I try to run specs, the specs run correctly but I get an error on the command line.The code Im running is the first demo example at
http://code.google.com/p/specs/wiki/QuickStart

Could not instantiate class helloWorld: 0
java.lang.ArrayIndexOutOfBoundsException: 0
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$.createInstanceOf(SpecsRunner.scala:93)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$.createObject(SpecsRunner.scala:78)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$$anonfun$main$1.apply(SpecsRunner.scala:40)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$$anonfun$main$1.apply(SpecsRunner.scala:39)
    at scala.Iterator$class.foreach(Iterator.scala:414)
    at scala.collection.mutable.ResizableArray$$anon$1.foreach(ResizableArray.scala:66)
    at scala.Iterable$class.foreach(Iterable.scala:256)
    at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:26)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$.main(SpecsRunner.scala:39)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner.main(SpecsRunner.scala)
Could not instantiate class helloWorld: 0
java.lang.ArrayIndexOutOfBoundsException: 0
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$.createInstanceOf(SpecsRunner.scala:93)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$.createObject(SpecsRunner.scala:78)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$$anonfun$main$1.apply(SpecsRunner.scala:40)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$$anonfun$main$1.apply(SpecsRunner.scala:39)
    at scala.Iterator$class.foreach(Iterator.scala:414)
    at scala.collection.mutable.ResizableArray$$anon$1.foreach(ResizableArray.scala:66)
    at scala.Iterable$class.foreach(Iterable.scala:256)
    at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:26)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner$.main(SpecsRunner.scala:39)
    at org.jetbrains.plugins.scala.testingSupport.specs.SpecsRunner.main(SpecsRunner.scala)

Process finished with exit code 0