Exercise_17_CreatingNeuralNetwork does not work on latest tensorflow (2.4.1)

[mkelly1495]

Environment:
python = 3.6.9
Keras = 2.4.3
nltk = 3.5
sklearn = 0.24.1
pandas = 1.1.5
tensorflow = 2.4.1

The nn.fit command fails with a TypeError: 'SparseTensor' object is not subscriptable error when executed on the latest docker image of tensorflow with pandas, nltk, and sklearn installed. I have attached the full stack trace.
err.txt

[qianchen94]

my environment is:
python = 3.6.9
Keras = 2.2.4
tensorflow = 1.8.0
which can be succeed to run this demo
hope can help you