“Could not interpret optimizer identifier” error in Keras

Question

I got this error when I tried to modify the learning rate parameter of SGD optimizer in Keras. Did I miss something in my codes or my Keras was not installed properly?

Answer 1

I got the same error message and resolved this issue, in my case, by replacing the assignment of optimizer:

optimizer=keras.optimizers.Adam

with its instance instead of the class itself:

optimizer=keras.optimizers.Adam()