问题
I've just generated a fresh Play! application, version 2.1-RC1.
This one includes two Scala compiler/library couple:
- Scala 2.9.2
- Scala 2.10.0-RC1
The whole well compiles within IntelliJ IDEA 12 but a warning occurs as the image shows it:
It would seem so that another compiler is used instead 2.10.0-RC1.
However, my Scala facet is configured as this:
What might be the warning cause?
I precise that I've got also a Scala variable environment (used for shell Scala commands) configured to point to scala-2.10.0-RC2, but I well imagine that IntelliJ is based on library that user indicates in Scala Facet.
回答1:
You can remove that .jar from the libraries, it's not used because it's redundantly generated by IntelliJ SBT plubin.
来源：https://stackoverflow.com/questions/14248159/library-scala-2-10-0-rc1-not-used-thrown-by-intellij-integrating-a-play-2-app