This error occurs because the layer_utils module is not part of the standalone keras library anymore or is being accessed incorrectly. Instead, it is available in tensorflow.keras.utils if you are using TensorFlow.
ImportError: cannot import name 'layer_utils' from 'keras.utils'
| cannot import name 'layer_utils' from 'keras.utils' | 
Solution:
Upgrade the Tensorflow and retry import.
pip install --upgrade tensorflow
Above is the command to upgrade the trensorflow in python.