AttributeError: 'Node' object has no attribute 'output_masks'

[hichamhendy]

keras | 2.2.5 | 2.2.4
keras-applications | 1.0.8 | 1.0.8
keras-preprocessing | 1.1.0 | 1.1.0
scipy | 1.3.1 | 1.3.1
setuptools | 39.1.0 | 41.0.1
six | 1.12.0 | 1.12.0
tensorboard | 1.9.0 | 1.14.0
tensorflow | 1.9.0 | 1.14.0
tensorflow-estimator | 1.14.0 | 1.14.0
tensorflow-gpu | 1.9.0 | 1.14.0
termcolor | 1.1.0 | 1.1.0
theano | 1.0.2 | 1.0.3

I have this error always in the script base_layer.py !!!

File "C:\ProgramData\Anaconda3\envs\LHP_Modell_Control_new_py35\lib\site-packages\keras\engine\base_layer.py", line 1305, in _collect_previous_mask
mask = node.output_masks[tensor_index]
AttributeError: 'Node' object has no attribute 'output_masks'

any suggestions ??

[nils-hde]

Use Keras 2.2.4. Anything above is not supported since they've changed the API again, couldn't figure out what happened to "_collect_previous_mask" though.