24.09.2019 · TF 2.2 does not have tensorflow_core.Please check output of pip lists, it's likely you have packages predating this release.. Please open new issue, fill in issue template.
20.11.2019 · @RobertoBuzzini Looks like RNN now only available in tf.keras. I am having the same problem like you and after searching a lot I didn't see any single case where someone is using RNN directly from tensorflow 2.