AttributeError: module 'keras.engine' has no attribute 'Layer'

This error occurs when you try to use a method or attribute that does not exist in the module you are importing. In this case, it seems that you are trying to use a Layer attribute from the keras.engine module, but it does not exist.

One possible solution is to check that you have imported the right module and that it is up-to-date. You can also try to update your Keras installation using pip:

pip install --upgrade keras

If the problem persists, you may want to try importing the Layer attribute from a different module, such as keras.layers:

from keras.layers import Layer

This should allow you to use the Layer attribute without encountering the AttributeError.