title: ValueError: The passed save_path is not a valid checkpoint: modeltest.ckpt
body: <p>I run this code </p>
  
  <pre><code>tf.reset_default_graph()
  v1 = tf.Variable(tf.constant(0.1, shape = [2]), name="v1")
  v2 = tf.Variable(tf.constant(0.2, shape = [2]), name="v2")
  saver = tf.train.Saver()
  with tf.Session() as sess:
      saver.restore(sess, "/tmp/model/model.ckpt")
  </code></pre>
  
  <p>and then this error is occured:ValueError: The passed save_path is not a valid checkpoint: modeltest.ckpt</p>
  
  <p>this is my env:</p>
  
  <p>tensorflow (1.10.1) </p>
  
  <p>tensorboard (1.10.0)</p>
  
  <p>h5py (2.8.0)</p>
  
  <p>Python 3.6.5</p>
  
  <p>Could you please advice how to solve out this error</p>
  
  <p>Thank you</p>