strange error message: bad symbolic reference. A signature in package.class refers to term apache in package org which is not available

Question

When I tried to compile simple typesafe\' akka program (scala 2.10, akka, 2.1.0):

 scalac -cp \"akka-actor_2.10-2.1.0.jar:akka-camel_2.10-2.1.0.jar\" write2.         


        

Answer 1

First time Scala user. I had some problems in configuring my eclipse and I used to get:

Error:scalac: bad symbolic reference. A signature in package.class refers to type compileTimeOnly
in package scala.annotation which is not available.
It may be completely missing from the current classpath, or the version on
the classpath might be incompatible with the version used when compiling package.class.

Finally found that scala test version 2.11 and compiler version should match. Downloaded scala version 2.11-RC1