title: Tensorboard: No graph definition files were found.
body: <p>In my Python code I execute
  train_writer = tf.summary.FileWriter(TBOARD_LOGS_DIR)
  train_writer.add_graph(sess.graph)</p>
  
  <p>I can see 1.6MB file created in E:\progs\tensorboard_logs (and no other file)
  but then when I execute
  tensorboard --logdir=E:\progs\tensorboard_logs
  it loads, but says: "No graph definition files were found." when I click on Graph.
  Additionally, running tensorboard --inspect --logdir=E:\progs\tensorboard_logs
  displays
  Found event files in:
  E:\progs\tensorboard_logs</p>
  
  <p>These tags are in E:\progs\tensorboard_logs:
  audio -
  histograms -
  images -</p>
  
  <h1>scalars -</h1>
  
  <p>Event statistics for E:\progs\tensorboard_logs:
  audio -
  graph
     first_step           0
     last_step            0
     max_step             0
     min_step             0
     num_steps            1
     outoforder_steps     []
  histograms -
  images -
  scalars -
  sessionlog:checkpoint -
  sessionlog:start -</p>
  
  <h1>sessionlog:stop -</h1>
  
  <p>This is TF 1.01 or so, on Windows 10.</p>