'Adam' object has no attribute 'build' (saving and loading keras.optimizers.Adam) #61915
Description
Issue type
Bug
Have you reproduced the bug with TensorFlow Nightly?
No
Source
binary
TensorFlow version
v2.13.0-rc2-7-g1cb1a030a62 2.13.0
Custom code
Yes
OS platform and distribution
MacOS ARM M1
Mobile device
No response
Python version
3.10.13
Bazel version
No response
GCC/compiler version
No response
CUDA/cuDNN version
No response
GPU model and memory
No response
Current behavior?
When running the code below we get the following error: AttributeError: 'Adam' object has no attribute 'build'
Standalone code to reproduce the issue
from tensorflow import keras
if __name__ == '__main__':
optimizer = keras.optimizers.Adam()
vh = keras.Input(shape=(2,3), name = 'vh')
v1 = keras.layers.Dense(512)(vh)
output = keras.layers.Dense(1, activation='softmax', name='prediction')(v1)
model = keras.Model(inputs=vh, outputs=[output], name="antibody_model")
model.compile(optimizer=optimizer )
model.save('nn_model.keras')
test = keras.models.load_model('nn_model.keras')Relevant log output
Traceback (most recent call last):
File "/opt/homebrew/Cellar/python@3.10/3.10.13/Frameworks/Python.framework/Versions/3.10/lib/python3.10/runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/opt/homebrew/Cellar/python@3.10/3.10.13/Frameworks/Python.framework/Versions/3.10/lib/python3.10/runpy.py", line 86, in _run_code
exec(code, run_globals)
File "/Users/palmito/Development/federated-demo/backend/app/test.py", line 15, in <module>
test = keras.models.load_model('nn_model.keras')
File "/Users/palmito/.local/share/virtualenvs/backend-tPS_SUas/lib/python3.10/site-packages/keras/src/saving/saving_api.py", line 230, in load_model
return saving_lib.load_model(
File "/Users/palmito/.local/share/virtualenvs/backend-tPS_SUas/lib/python3.10/site-packages/keras/src/saving/saving_lib.py", line 275, in load_model
raise e
File "/Users/palmito/.local/share/virtualenvs/backend-tPS_SUas/lib/python3.10/site-packages/keras/src/saving/saving_lib.py", line 240, in load_model
model = deserialize_keras_object(
File "/Users/palmito/.local/share/virtualenvs/backend-tPS_SUas/lib/python3.10/site-packages/keras/src/saving/serialization_lib.py", line 710, in deserialize_keras_object
instance.compile_from_config(compile_config)
File "/Users/palmito/.local/share/virtualenvs/backend-tPS_SUas/lib/python3.10/site-packages/keras/src/engine/training.py", line 3582, in compile_from_config
self.optimizer.build(self.trainable_variables)
File "/Users/palmito/.local/share/virtualenvs/backend-tPS_SUas/lib/python3.10/site-packages/keras/src/optimizers/legacy/optimizer_v2.py", line 997, in __getattribute__
raise e
File "/Users/palmito/.local/share/virtualenvs/backend-tPS_SUas/lib/python3.10/site-packages/keras/src/optimizers/legacy/optimizer_v2.py", line 987, in __getattribute__
return super().__getattribute__(name)
AttributeError: 'Adam' object has no attribute 'build'