我正在尝试针对Scala 2.10.0 RC1构建我们的旧项目。这是我在做的时候得到的错误：
rahul@acb70333:~/Projects/Vayana/gryphon-camel-scala> gradle build
:compileJava UP-TO-DATE
:compileScala
[ant:scalac] scala.reflect.internal.MissingRequirementError: object scala.beans.BeanInfo in compiler mirror not found.
[ant:scalac] at scala.reflect.internal.MissingRequirementError$.signal(MissingRequirementError.scala:16)
...
[ant:scalac] at org.gradle.launcher.GradleMain.main(GradleMain.java:26)
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileScala'.
> Compile failed because of an internal compiler error (object scala.beans.BeanInfo in compiler mirror not found.); see the error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 24.7 secs
此处有完整的堆栈跟踪：https://www.refheap.com/paste/6228。
此错误消息是什么意思？我在类路径上缺少一些库吗？