title: how to find JAR: /home/hadoop/contrib/streaming/hadoop-streaming.jar
body: <p>I'm practicing a video tutorial from plural sight about Amazon EMR. I am stuck as i cannot proceed as i am getting this error</p>
  
  <p><code>Not a valid JAR: /home/hadoop/contrib/streaming/hadoop-streaming.jar</code> </p>
  
  <p>Please note that tutorial is old and it is using a older Emr version. I am using the latest version is that a problem ?</p>
  
  <p>The steps that i took are after entering the credentials in putty </p>
  
  <blockquote>
    <p>1) Hadoop </p>
    
    <p>2) mkdir streamingCode`</p>
    
    <p>3) wget -o ./streamingCode/wordSplitter.py
    s3://elasticmapreduce/samples/wordcount/wordSplitter.py </p>
    
    <p>4) hadoop jar contrib/streaming/hadoop-streaming.jar  -files
    streamingCode/wordSplitter.py -mapper wordSplitter.py input
    s3://elasticmapreduce/samples/wordcount/input -output
    streamingCode/wordCountOut -reducer aggregate`</p>
  </blockquote>
  
  <p>I cannot execute step 4 as i am getting the below error </p>
  
  <p><code>Not a valid JAR: /home/hadoop/contrib/streaming/hadoop-streaming.jar</code></p>