Tensor is unhashable. Instead, use tensor.ref() as the key.

[sbmxc]

I am getting this error on line number 21(model.train(example_data)). Anyone facing the same issue?

[Tizartijo]

This work for me:
%pip uninstall -y tensorflow
%pip uninstall -y tensorflow-gpu
%pip install tensorflow_probability==0.7.0rc0
%pip install tensorflow-gpu==2.0.0a0