scala – 奇怪的错误信息：坏的符号引用. package.class中的一个

scalac -cp "akka-actor_2.10-2.1.0.jar:akka-camel_2.10-2.1.0.jar" write2.scala

error: bad symbolic reference. A signature in package.class refers to term apache
in package org which is not available.
It may be completely missing from the current classpath,or the version on
the classpath might be incompatible with the version used when compiling package.class.
error: bad symbolic reference. A signature in package.class refers to term camel
in value org.apache which is not available.
It may be completely missing from the current classpath,or the version on
the classpath might be incompatible with the version used when compiling package.class.
write2.scala:21: error: bad symbolic reference. A signature in package.class refers to term model
in value org.camel which is not available.
It may be completely missing from the current classpath,or the version on
the classpath might be incompatible with the version used when compiling package.class.
val mina = system.actorOf(Props[MyEndPoint])

three errors found

第21行代码：

val mina = system.actorOf(Props[MyEndPoint])

(同样的程序在Eclipse中被正确编译,所以源代码是OK的)

在-cp变量中可能有一些jar文件丢失.问题是什么意思是奇怪/无用的错误信息.

谢谢Tomas