title: org.apache.spark.sql.Row cannot be resolved in Spark 2.0 Preview
body: <p>I am already using Spark 1.6.1 and now evaluating Spark 2.0 Preview, but I am not able to find org.apache.spark.sql.Row.</p>
  
  <p>This is required as, I am migrating my DataFrame code in 1.6.1 to 2.0-preview. Am I missing something over here? My maven dependency is pasted below</p>
  
  <pre><code>  &lt;dependency&gt;
          &lt;groupId&gt;org.apache.spark&lt;/groupId&gt;
          &lt;artifactId&gt;spark-core_2.11&lt;/artifactId&gt;
          &lt;version&gt;2.0.0-preview&lt;/version&gt;
           &lt;scope&gt;system&lt;/scope&gt;
          &lt;systemPath&gt;C://spark-2.0.0-preview-bin-hadoop2.7//jars//spark-core_2.11-2.0.0-preview.jar&lt;/systemPath&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;com.oracle&lt;/groupId&gt;
          &lt;artifactId&gt;ojdbc7&lt;/artifactId&gt;
          &lt;version&gt;12.1.0.1&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;org.apache.spark&lt;/groupId&gt;
          &lt;artifactId&gt;spark-sql_2.11&lt;/artifactId&gt;
          &lt;version&gt;2.0.0-preview&lt;/version&gt;
           &lt;scope&gt;system&lt;/scope&gt;
          &lt;systemPath&gt;C://spark-2.0.0-preview-bin-hadoop2.7//jars//spark-sql_2.11-2.0.0-preview.jar&lt;/systemPath&gt;
      &lt;/dependency&gt;
  </code></pre>