在sbt文件的storagelevel的libraryDependencies中应该添加什么，我使用sbt工具构建spark？
我的build.sbt文件为，
name := "Spark Sample"
version := "1.0"
scalaVersion := "2.11.7"
libraryDependencies += "org.apache.spark" % "spark-core_2.11" % "1.5.2"
libraryDependencies += "org.apache.spark" % "spark-graphx_2.11" % "1.5.2"
使用sbt工具编译时出错。
[info] Compiling 1 Scala source to /home/project_readdirectory/target/scala-2.11/classes...
[error] /home/project_readdirectory/src/main/scala/query.scala:8: expected class or object definition
[error] org.apache.spark.storage.StorageLevel
[error] ^
[error] one error found
[error] (compile:compileIncremental) Compilation failed
[error] Total time: 12 s, completed Dec 22, 2015 8:38:49 PM
谢谢！