TypeError: cannot unpack non-iterable NoneType objec

[FernandoDorado]

1) Confirm the below

• [x] My Python version is 3.5 or higher
• [x] I have searched through the issues Issues for a duplicate
• [x] I've tested that my Keras model works as a stand-alone

2) Include the output of:

talos.__version__ : '0.6.3'

3) Explain clearly what you expect to happen

I am trying to optimize a model using tensorflow 2.0, the first training does well, but at the beginning of the second I get the error: TypeError: cannot unpack non-iterable NoneType object

4) Explain what actually happened

TypeError: cannot unpack non-iterable NoneType objec using Tensorflow 2.0

5) Provide a code-complete reference

p = { 'L2_reg' : [0.001,0.01],
'batch_size': [100], 'lstm_cells1':[100,200,400], 'lr':[0.001]}

x_train = [cnn_train, ann_train] x_dev = [cnn_dev, ann_dev]

scan_object = talos.Scan(x=x_train, y=y_train, x_val=x_dev, y_val=y_dev, params=p, model=build_model, experiment_name='CPU')

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[github-actions[bot]]

Welcome to Talos community! Thanks so much for creating your first issue :)

[mikkokotila]

Can you give the whole trace.

[mikkokotila]

Closing this as stale.