When i run first command for installation of rasa X

when i run command like pip install rasa-x --extra-index-url https://pypi.rasa.com/simple below error is generate every time

ERROR: No matching distribution found for aiohttp~=3.5 (from rasa-x)

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I’ve also run into this issue.

i slove this issue by using virtul environment of python(3.6)…

@stephens I suppose you are using too early of a python 3.5 version. Aiohttp requires at least 3.5.3, we have realized this and will soon document it. Add info that python >= 3.5.3 is required · Issue #3730 · RasaHQ/rasa · GitHub

Yes, when I moved on to the Docker based install this issue went away. Waiting on fixes for the docker setup so I can try Rasa X.