Sensehat stumped

Are there a lot of people that can’t get the sense hat working? I tried everything and just get “unknown” instead of values. My raspberry can get values in the python environment!
I’ve even done a fresh install of hassbian, to no avail.

Log Details (WARNING)
Tue Mar 27 2018 01:02:34 GMT+0200 (Rom, sommertid)

Could not render template sensehat_temperature, the state is unknown.

You are going to provide a lot more details for anyone to make sense of what your problem is.

The instructions on this page don’t work on RP3 with stretch. https://www.home-assistant.io/components/sensor.sensehat/

This command “source /srv/homeassistant/homeassistant_venv/bin/activate”
returns “bash: /srv/homeassistant/homeassistant_venv/bin/activate: No such file or directory”