NameError: name 'norm_sum' is not defined

[matthew-mcateer]

When running the notebook FFNNBidding.ipynb, the last cell returns the following error:

WARNING:tensorflow:From /content/utils.py:89: The name tf.summary.FileWriter is deprecated. Please use tf.compat.v1.summary.FileWriter instead.

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-8-66fff74d63d6> in <module>()
     16 session = tf.Session(graph=graph)
     17 with graph.as_default():
---> 18     train_step, metrics = model_fn(hparams)
     19     session.run(tf.global_variables_initializer())
     20 

<ipython-input-7-0106af30ba7a> in model_fn(hparams)
     36     accuracy = tf.reduce_mean(tf.cast(correct, tf.float32))
     37 
---> 38     full_loss = loss + (hparams.alpha * norm_sum)
     39 
     40     train_step = tf.train.AdamOptimizer(hparams.learning_rate).minimize(full_loss)

NameError: name 'norm_sum' is not defined

[unconst]

These other tests need a lot of work.