I’ve received the below exception when trying to save my model and have not been able to debug it.
I attempt to save my model weights with:
model.save('/path/to/model_weights.h5')
The first time I do this it works fine. After this I change my learning rate with:
model.optimizer.lr = 0.1
After I’ve changed the learning rate, any time I attempt to save the model weights I get the below exception.
Exception: 'get_value() can only be called on a variable. If you have an expression instead, use eval().
Has anyone else seen this or able to understand what is causing this error. This is on a fine-tuned version of the VGG16 model running in Jupyter Notebook on a t2 instance.
Thanks for your help.