title: Creating Spark application using wrong Scala version
body: <p>I am following the instructions here: <a href="https://spark.apache.org/docs/latest/quick-start.html" rel="nofollow">https://spark.apache.org/docs/latest/quick-start.html</a> to create a simple application that will run on a local standalone Spark build.</p>
  
  <p>In my system I have Scala 2.9.2 and sbt 0.13.7.
  When I write in my <code>simple.sbt</code> the following:</p>
  
  <p><code>scalaVersion := "2.9.2"</code></p>
  
  <p>after I use <code>sbt package</code>, I get the error:
  <code>sbt.ResolveException: unresolved dependency: org.apache.spark#spark-core_2.9.2;1.3.1: not found</code></p>
  
  <p>However, when I write in <code>simple.sbt</code>:</p>
  
  <p><code>scalaVersion := "2.10.4"</code></p>
  
  <p>sbt runs successfully and the application runs fine on Spark.</p>
  
  <p>How can this happen, since I do not have scala 2.10.4 on my system?</p>