when i run this code
import os
from autokeras import
StructuredDataClassifier
import stellargraph as sg
from stellargraph.mapper import
FullBatchNodeGenerator
from tensorflow.keras import layers,
optimizers, losses, metrics, Model
from sklearn import preprocessing,
model_selection
from IPython.display import display, HTML
import matplotlib.pyplot as plt
%matplotlib inline
i have this error
AttributeError: module 'keras.layers.normalization' has no attribute 'BatchNormalizationBase'
Knowing that this code has been run many times without any problems