Thanks for help. I have tried the solution mentioned there with several times.
I did that in different computers with clean installation from ubuntu server 18 server LTS ISO file and follow the instructions: https://rasa.com/docs/rasa/user-guide/installation/ by using from git source (because using pip install rasa will cause an sanic? package version dependency issue as forum already recolonized at this time)
$ sudo apt update $ sudo apt install python3-dev python3-pip $ sudo pip3 install -U pip
$ git clone GitHub - RasaHQ/rasa: 💬 Open source machine learning framework to automate text- and voice-based conversations: NLU, dialogue management, connect to Slack, Facebook, and more - Create chatbots and voice assistants $ cd rasa $ pip install -r requirements.txt $ pip install -e .
and rasa will installed successful without any errors.
However, I try rasa init (good, no problem) rasa shell (seg fault) test example restaurant and input rasa train (seg fault)
PS. I install ubuntu OS into windows vmware and virtualbox with 3 computers. all the same errors.