More than one scala library found in the build path (D:/Personal Files/spark-1.3.0-bin-hadoop2.4b/spark-assembly-1.3.0-hadoop2.4.0.jar, D:/Personal Files/eclipse/plugins/org.scala-lang.scala-library_2.11.6.v20150224-172222-092690e7bf.jar).At least one has an incompatible version. Please update the project build path so it contains only one compatible scala library.
The version of scala library found in the build path of Spark (2.10.4) is prior to the one provided by scala IDE (2.11.6). Setting a Scala Installation Choice to match.