I use Scala 2.10.0RC1 and sbt 0.12.1.
What causes and how can I fix this runtime error (runs fine on 2.9.2)?
The exact error message is:
java.lang.NoSuchMethodError: scala.Predef$ArrowAssoc$.extension$$minus$greater(Ljava/lang/Object;Ljava/lang/Object;)Lscala/Tuple2;