I have recently tried to move from Rasa 2 to Rasa 3.
With my pip version 21.2.2, installation takes forever (more than 5 hours), and ultimately fails. I have tried several different python version (3.7, 3.8, 3.9) in separate anaconda environments and get the same problem every time.
Now I have also seen that installing Rasa 2.8 takes quite some time with this pip version. However, for Rasa 2.8 it works to just downgrade pip to 20.2. If I do the same for Rasa 3, I get the following errors:
sanic-plugin-toolkit 1.2.1 requires sanic<21.12.0,>=21.3.1, but you'll have sanic 21.12.1 which is incompatible. sanic 21.12.1 requires multidict<6.0,>=5.0, but you'll have multidict 6.0.2 which is incompatible.
While rasa 3.0.5 shows up as being installed when I type “conda list”, just getting the rasa version in the anaconda terminal fails:
ImportError: cannot import name 'CompositionView' from 'sanic.views' (c:\users\annaf\anaconda3\envs\rasa3-pip\lib\site-packages\sanic\views.py)
So now while I would like to move to Rasa 3, I do not see any way to do that.
It would be great if you could help me!