title: Microsoft Azure HDInsight -"Not Valid JAR"
body: <p>I have got the following prompt (see attachment below) when I run an example from the Implementing Big Data Analysis course.
  "Not a Valid JAR"</p>
  
  <p>The command:</p>
  
  <p>C:\apps\dist\hadoop-2.6.0.2.2.7.1-0004>hadoop jar hadoop-examples.jar wordcount /example/data/gutenberg/davici.txt /example/results</p>
  
  <p>Please advise how to resolve this issue.
  Thanks</p>