.jar files cross-compiled with an incompatible version of Scala (2.10)

Question

I am building my first Scala/Play application and after I create and import an eclipse project from the Play shell, I get 17 errors.

akka-actor_2.10.jar is cross compiled with an incompatible version of Scala (2.10)
akka-slf4j_2.10.jar is cross compiled with an incompatible version of Scala (2.10)
anorm_2.10.jar ...
play_2.10.jar ...
play_iterates_2.10.jar ...

The list goes on to include the Scala jars, scalaz jars, etc...

I am using:
Eclipse 4.2.2
Scala ide 3.0.0.nightly-2_09
Scala 2.10
Play 2.1

Has someone experienced the same thing?

Answer 1

Is it possible you are using Scala IDE built for for Scala 2.9.x ?

Make sure you use the one for 2.10.x: http://download.scala-ide.org/sdk/e38/scala210/dev/site/