“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

For some libraries (e.g. keras_radam) you'll need to set up an environment variable before the import:

import os
os.environ['TF_KERAS'] = '1'

import tensorflow
import your_library