pip install rasa-sdk==2.8.2 or 2.8.1
check version rasa --version its install or not
then
pip install rasa-x==0.39.3 --extra-index-url https://pypi.rasa.com/simple
check rasa version rasa --version its install or not
You will see some error : ImportError: cannot import name ‘RowProxy’ from ‘sqlalchemy.engine’ Install
pip install SQLAlchemy==1.3.22 should fix it
If sanic related error:
pip install sanic-jwt==1.6.0
delete .db if is showing alembic issue.
Good luck! I hope this will solve your issue.