title: apache_beam.runners.dataflow_runner.DataflowRuntimeException: Dataflow pipeline failed:
body: <p>I set up a Google Cloud project in Cloud Shell, and tried to run this tutorial script <a href="https://github.com/GoogleCloudPlatform/cloudml-samples/blob/master/flowers/sample.sh" rel="nofollow noreferrer">https://github.com/GoogleCloudPlatform/cloudml-samples/blob/master/flowers/sample.sh</a></p>
  
  <p>Ran into this error:</p>
  
  <pre><code>***@***:~/git/cloudml-samples/flowers$ ./sample.sh 
  Your active configuration is: [cloudshell-4691]
  
  
  Using job id:  flowers_***_20170113_162148
  
  python trainer/preprocess.py \
    --input_dict "$DICT_FILE" \
    --input_path "gs://cloud-ml-data/img/flower_photos/eval_set.csv" \
    --output_path "${GCS_PATH}/preproc/eval" \
    --cloud
  WARNING:root:Using fallback coder for typehint: Any.
  WARNING:root:Using fallback coder for typehint: Any.
  WARNING:root:Using fallback coder for typehint: Any.
  DEPRECATION: pip install --download has been deprecated and will be removed in the future. Pip now has a download command that should be used instead.
  Collecting google-cloud-dataflow==0.4.4
    Using cached google-cloud-dataflow-0.4.4.zip
    Saved /tmp/tmpSoHiTi/google-cloud-dataflow-0.4.4.zip
  Successfully downloaded google-cloud-dataflow
  # Takes about 30 mins to preprocess everything.  We serialize the two
  Traceback (most recent call last):
    File "trainer/preprocess.py", line 436, in &lt;module&gt;
      main(sys.argv[1:])
    File "trainer/preprocess.py", line 432, in main
      run(arg_dict)
    File "trainer/preprocess.py", line 353, in run
      p.run()
    File "/home/slalomconsultingsf/.local/lib/python2.7/site-packages/apache_beam/pipeline.py", line 159, in run
      return self.runner.run(self)
    File "/home/slalomconsultingsf/.local/lib/python2.7/site-packages/apache_beam/runners/dataflow_runner.py", line 195, in run
      % getattr(self, 'last_error_msg', None), self.result)
  apache_beam.runners.dataflow_runner.DataflowRuntimeException: Dataflow pipeline failed:
  (b85b0a598a3565cb): Workflow failed.
  </code></pre>
  
  <p>I was not able to get any clue where I was doing wrong from <a href="https://i.stack.imgur.com/3iywE.png" rel="nofollow noreferrer">the Error Log of GoogleCloud Dataflow</a></p>
  
  <p>Appreciate any answer and help for troubleshooting.</p>