ERROR: Could not find a version that satisfies the requirement tensorflow-addons<0.8.0,>=0.7.1 (from rasa) (from versions: none)
I've made the same mistake of installing the python version 3.8 when it says on the RASA installation notes that you've got to go for version 3.6 3.7 for now.
After having the right version of Python in my venv (macOS zsh) the installation worked fine. From the python site you can find the right version to prepare for your environment. Also it was advised that you prepare the python version for the venv and not your entire system (which I think is at python 2.x)
Making sure that you have all the components you need and the right version was key for RASA to not have issues during the install.
I tried to install Rasa, with the command: pip3 install rasa.
However, I came up against an error about tensorflow, which is not automatically installed.
Then I used command: pip3 install tensorflow, unfortunately, an error appeared:
ERROR: Could not find a version that satisfies the requirement tensorflow-addons<0.8.0,>=0.7.1 (from rasa) (from versions: none).
So how could I install Rasa, and Tensorflow as well?
P/s: Python --version: 3.8.3;
pip --version: 20.1.1