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Eval

Hello
I would like to know how can I eval the model. I did some attempts but none of them worked fo me.

For example:

flags.DEFINE_string('checkpoint',  "checkpoints/-2400", 'Checkpoint file')
flags.DEFINE_boolean('eval', True, 'Whether to train or evaluate')
flags.DEFINE_string('image', "images/0065UL-330.png", 'Image file for evaluation')

Return:

Instructions for updating:
Use `tf.global_variables_initializer` instead.
Traceback (most recent call last):
  File "learn.py", line 86, in <module>
    predictions = model.predict(img)
  File "/Users/samirantonio/anaconda/envs/flappybird/lib/python2.7/site-packages/tflearn/models/dnn.py", line 204, in predict
    return self.predictor.predict(feed_dict)
  File "/Users/samirantonio/anaconda/envs/flappybird/lib/python2.7/site-packages/tflearn/helpers/evaluator.py", line 69, in predict
    o_pred = self.session.run(output, feed_dict=feed_dict).tolist()
  File "/Users/samirantonio/anaconda/envs/flappybird/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 766, in run
    run_metadata_ptr)
  File "/Users/samirantonio/anaconda/envs/flappybird/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 943, in _run
    % (np_val.shape, subfeed_t.name, str(subfeed_t.get_shape())))
ValueError: Cannot feed value of shape (1, 36, 36, 3) for Tensor u'InputData/X:0', which has shape '(?, 125, 30, 3)'

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