Error with scala-2.8 and scalacheck: Prop has wrong version

scala
Welcome to Scala version 2.8.0.final (Java HotSpot(TM) Client VM, Java 1.6.0_20).
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scala> import org.scalacheck.Prop.forAll                                      
error: error while loading Prop, Scala signature Prop has wrong version
 expected: 5.0
 found: 4.1 in /opt/scala-2.8/lib/scalacheck.jar(org/scalacheck/Prop.class)

It's the the actual scala-2.8, and scalacheck was updated with sbaz immediately before (sbaz update; sbaz upgrade).

Is scalacheck for scala-2.8 under development, and not suitable for 2.8, or what might be the problem?

Do I have to get the sources, and recompile scalacheck by myself开发者_C百科?

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You can get it from the project page. It seems that it is not updated to 1.7 in sbaz yet.

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ScalaCheck 1.7 for Scala 2.8 should be available in sbaz now.