>>>>> "Jason" == Jason Bertsche <[email protected]> writes:

 >> Exception in thread "main" java.lang.NoClassDefFoundError:
 >> scala/reflect/ClassManifest

 Jason> The stacktrace is small and seems to happen very shortly after
 Jason> NetLogo loads up, almost immediately failing to find a valid
 Jason> Scala class at runtime.  This indicates that you probably don't
 Jason> have 'scala-library.jar' on your classpath.

>From this specific error I'd guess the problem is probably actually a
Scala version mismatch, rather than Scala being missing entirely.  I'd
expect to see this error if you tried to use Scala 2.10 to run code that
was compiled for 2.9.  (In 2.10, scala.reflect.ClassManifest no longer
exists except as a type alias.)

Robert: you have to be meticulous about using the right Scala version
for everything.  If you're working with NetLogo 5.0.x, only Scala 2.9.x
will work.  (On the master and headless branches -- which you shouldn't
be using unless you have a specific reason to -- only Scala 2.10.x will
work.)

--
Seth Tisue | Northwestern University | http://tisue.net
developer, NetLogo: http://ccl.northwestern.edu/netlogo/

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