title: Spark 2.0 CSV Error
body: <p>I am upgrading to spark 2 from 1.6 and am having an issue reading in CSV files. In spark 1.6 I would have something like this to read in a CSV file.</p>
  
  <pre><code>val df = sqlContext.read.format("com.databricks.spark.csv")
  .option("header", "true")
  .load(fileName)
  </code></pre>
  
  <p>Now I use the following code as given in the documentation:</p>
  
  <pre><code>val df = spark.read
  .option("header", "true")
  .csv(fileName)
  </code></pre>
  
  <p>This results in the following error when running: </p>
  
  <p><code>"Exception in thread "main" java.lang.RuntimeException: Multiple     sources found for csv     (org.apache.spark.sql.execution.datasources.csv.CSVFileFormat,   com.databricks.spark.csv.DefaultSource15), please specify the fully qualified class name."</code></p>
  
  <p>I assume this is because I still had the spark-csv dependency, however I removed that dependency and rebuilt the application and I still get the same error. How is the databricks dependency still being found once I have removed it?</p>