I just installed Visual Studio 2019 and Tensorflow, but I cannot import Keras because I get the following error message:
Keras requires TensorFlow 2.2 or
Following the advice given here, downgrading Keras did the trick for me without having to touch any other packages. Just do:
pip install keras==2.3.0
I hope this only remains a temporary issue and will be fixed in future versions of TensorFlow and Keras.
Other possible solutions, are discussed here.